UK ETA for U.S. Travelers: Cost, Application, Validity, and Transit Rules

Yes, you need one. A UK ETA for US citizens is a digital travel permission that costs £20, takes a few minutes to apply for, lasts two years, and has been a hard requirement at the airline check-in desk since early 2026.

You apply on your phone or on the government website, you wait for an email, and then you travel on the same passport you used to apply. Nothing gets stamped in your passport and nobody asks for a printout.

The trouble is that the process looks easy enough that people rush it, and a rushed application is where the expensive mistakes come from: a lookalike website charging three times the real price, a passport number typed with a zero for an O, or a flight booked for tomorrow with an approval that has not arrived.

This guide walks through the UK ETA for US citizens in the order you will meet it. Who needs an ETA, what it costs in pounds and dollars, how the app and the website differ, how long approval takes, what the permit allows, what happens on a layover at Heathrow, and what to do if the answer is no.

I have helped relatives apply, watched a family at a Boston check-in desk discover their ETA email was sitting in a spam folder, and sent more than one friend through Heathrow with a connection they feared would trip the rules. What follows is the version I give them: plain, in order, with the reasoning behind each step. If you are still building the trip itself, our guide on how to plan a trip step by step shows where this task fits in the sequence.

What a UK ETA is, and what it is not

An Electronic Travel Authorisation, the thing behind the UK ETA for US citizens requirement, is a pre-screening step for travelers who do not need a visa. The Home Office checks your passport details, your answers to a few questions and your photo against its records, and if nothing flags, it grants a digital permission linked to that passport. The airline checks the link when you check in. That is the entire mechanism, and the official GOV.UK ETA guidance describes it in the same terms.

If you have used ESTA to enter the United States, a UK ETA for US citizens will feel familiar. The details are not.

ETA versus visa

Americans still do not need a visa to visit the UK for up to six months. A UK ETA for US citizens is not a visa and does not appear in your passport as a sticker. The visa-free rule has not changed. What changed is that you must now be pre-cleared before boarding, rather than being questioned for the first time at the border desk.

If you want to work, study for longer than a short course, marry or stay past six months, you are in visa territory and the ETA does not apply.

ETA versus entry permission

This is the sentence people skip: a UK ETA for US citizens does not guarantee entry. It gets you onto the plane. Once you land, a Border Force officer can still ask why you are visiting, where you are staying and how long you plan to remain, and can refuse entry if the answers do not hold together.

For an ordinary vacation this is a two-minute exchange. It is still worth having your return flight and first night’s address handy.

How long this has been in force

The UK launched the scheme in late 2023 for a small group of Gulf nationalities and widened it in stages. The UK ETA for US citizens requirement has applied since early 2025, and from February 25, 2026 airlines, ferry operators and rail carriers are expected to refuse boarding to anyone who is eligible for an ETA but does not hold one.

In practice, that means the check-in desk is now the first border. You will not talk your way past it.

Who needs a UK ETA for US citizens, and who does not

If you hold a U.S. passport and you are traveling to the United Kingdom for a visit, you need a UK ETA for US citizens. That includes a long weekend in London, a week driving the Scottish Highlands, a family reunion in Belfast and a day trip to Jersey.

It applies to every person in the party, and the rule is per passport, not per household. A newborn needs one. A seventy-nine-year-old grandmother needs one. A parent can apply on behalf of a child, and I would always do the whole family in one sitting so that every spelling matches.

The business-trip question

Many Americans assume that anything involving a laptop and a lanyard needs a work visa. A UK ETA for US citizens covers genuine business visits, such as attending meetings, conferences and training, and negotiating or signing contracts. It does not cover working for a UK company or being self-employed there.

If you are being paid by a UK client to do the work, rather than visiting to discuss it, read the official page on what you can and cannot do with an ETA before you book. Some paid engagements and creative-worker concessions are allowed; most paid work is not.

Do you also need ETIAS for the rest of the trip?

The UK is not part of the Schengen area, so a UK ETA for US citizens does not cover France, Spain or anywhere else on the Continent. If your itinerary continues across the Channel, the EU has its own system, covered in our guides to ETIAS for US citizens and how the Europe EES works at Schengen borders.

A London-and-Paris trip means two separate sets of paperwork, and keeping them straight in your head is half the battle.

UK ETA for US citizens: what it costs

The fee for a UK ETA for US citizens is £20 per traveler. It rose from £16 on April 8, 2026, and the scheme launched at £10, so the price has doubled in about two and a half years. At typical exchange rates that is roughly $26 to $27, and your card issuer will convert it at the rate and fees it normally applies on foreign transactions.

A card with no foreign transaction fee saves a few cents here. It is not worth opening one just for this.

What a family actually pays

Two adults and two children means four ETAs, which is £80, roughly $105 to $108. A couple pays £40. A group of six friends pays £120 in total, or £20 each. There is no family or child discount, and babies pay the full fee.

Because a UK ETA for US citizens lasts two years, a family that visits twice in that window pays once. This is the one argument I accept for applying early rather than at the last minute.

Non-refundable means non-refundable

Once you submit and pay, the money is gone whether the answer is yes or no. You also cannot amend or withdraw a submitted application; if you made an error, you apply again and pay again. That makes the data-entry stage the most expensive moment of the whole process.

Slow down at the passport page. Read the number aloud if it helps.

Anything above £20 is a middleman

The government fee is the only mandatory cost. Some sites charge £50, £80 or more for the same form, add a “priority processing” upsell, and present themselves with a flag and a lot of reassuring text. GOV.UK states plainly that applying through another site does not speed up the decision.

I come back to this in the section on lookalike sites, because it is the most common way Americans overpay for this permit.

How the cost fits a trip budget

Set against airfare, a hotel and a train ticket to Edinburgh, the £20 for a UK ETA for US citizens is small. It is still a real line item for a family, and it is a reminder that the UK adds friction costs that a domestic trip does not. When I budget for a first trip I put the ETA, a travel eSIM or roaming plan and the airport transfer in one row, so they do not feel like surprises later.

If you are shopping for flights now, our guide to finding cheap flights covers the search habits that save far more than the ETA costs.

How to apply for a UK ETA for US citizens, step by step

There are two official routes to a UK ETA for US citizens: the UK ETA app and the application on GOV.UK. Both go to the same system and cost the same. Which one you pick matters less than making sure you are on the real one, so start at gov.uk/eta/apply and follow the link to the app store from there if you want the app.

App or website: which one I would pick

For a UK ETA for US citizens application I use the app when I have the passport in my hand and a phone with a decent camera. It reads the chip in the passport and scans your face with the phone, which means fewer typing errors and no separate photo to fix. For the standard biometric U.S. passport, it is the faster path by a few minutes.

I use the website for anyone who is not with me, for older relatives whose phones struggle, and for children whose faces I would rather photograph calmly at home. You can apply for another person in the app only if they are physically with you.

You need the passport you will actually travel with, an email address you can read on your phone, and a card or a wallet payment method (credit card, debit card, Apple Pay or Google Pay). On the website you also need a clear photo of the passport photo page and a photo of your face.

Make sure the passport is valid for the entire trip. The State Department’s UK country page says a U.S. passport must be valid for your whole stay and have at least one blank page. If you are not sure the document is in good shape, our US passport guide covers renewals and processing times.

Type gov.uk/eta/apply yourself, or open the GOV.UK page and tap through. Search results for “UK ETA” are crowded with paid ads from sites that look official. The real domain ends in gov.uk, and the real application never asks for more than the £20 fee.

On the phone, search the app store for the UK ETA app published by the UK Home Office and compare it with the link on the GOV.UK page. Download only one.

The form asks for your name exactly as it appears in the machine-readable lines at the bottom of the passport photo page, your date of birth, passport number and expiry date, contact details, and some travel and background questions. These include whether you have a criminal record, and they are mandatory.

Answer them accurately. A conviction does not always lead to a refusal, but an inaccurate answer creates a bigger problem than the conviction would have. If your name has a hyphen, an accent or a suffix such as Jr., copy what the passport shows and not what you normally write.

The photo must follow GOV.UK’s digital photo rules, and a photo that does not can delay or sink the application. Plain light background, no hat, no glasses glare, neutral expression, face centered. In the app the camera guides you. On the website you upload a file, so take it at a window in daylight rather than under a kitchen light.

For babies, lay them on a plain light sheet and photograph from above. It takes three tries; allow for that.

The review screen is your last chance to catch an error, because the system will not let you edit after submission. Read the passport number character by character against the physical document. The usual culprits are the letter O against the number 0, and a swapped pair of digits.

Then pay the £20 by card or wallet. The receipt arrives by email, and so does a reference you can use if you need to contact UK Visas and Immigration.

The decision comes by email. Wait for it before you fly. When it arrives, save it, take a screenshot, and keep it in the same folder as your booking confirmations. You do not need to print it; the airline checks your ETA electronically against your passport.

If you want to look at the record yourself, the government has a status page at gov.uk/check-eta that shows whether you hold an ETA and when it expires.

When to apply, and how long a UK ETA for US citizens takes

GOV.UK says you will usually get a decision within a day, but it can take up to three working days. Most of mine have arrived within minutes. The long tail is the application that gets pulled for a manual look, which is why I treat three working days as the planning number and anything faster as a bonus.

Working days exclude weekends and UK bank holidays, so an application submitted on a Friday afternoon before a long weekend can sit for a while.

My rule: apply when the plan is real, not at the airport

The ideal moment to file a UK ETA for US citizens application is right after you book flights, or when you are confident you are going, which is often a few weeks out. Applying too early gives you nothing to lose, because the ETA lasts two years. Applying too late is where the stress comes from.

The one exception is a passport that expires within the next year or so: the ETA would expire with it, so renew the passport first and apply with the new one. More on that in the next section.

If you have not heard back after three working days

First check your spam and junk folders, since the approval email comes from a government address that some filters distrust. Then use the webchat on GOV.UK. The official guidance says to contact UKVI if three working days have passed with nothing in your inbox.

Do not submit a second application in the meantime. A duplicate costs another £20 and can muddy the record.

Last-minute situations

If you booked a trip for next week, apply right now, on the app, with your passport in front of you. Plenty of last-minute UK ETA for US citizens applications are approved in under an hour. Some are not, and an airline will not hold your seat while a decision is pending.

If your flight is within a day or two and the decision has not arrived, speak to the airline about changing the flight rather than hoping. A change fee hurts, but boarding denied hurts more.

Validity, your passport and what a UK ETA for US citizens allows

An approved UK ETA for US citizens lasts two years or until your passport expires, whichever is sooner. It allows multiple entries during that time, each for up to six months. It is linked to the passport you applied with and to nothing else, so the passport is the real object you are managing.

The passport is the anchor

Say your passport expires in 14 months. Your ETA will expire in 14 months, not 24. If you get a new passport after that, the old ETA no longer matches and you apply for a new ETA with the new passport number. The scheme does not transfer an authorization from one passport to another.

That is why I check the expiry date before I apply, and why I renew early when a trip overlaps a passport’s final year. Our guide to the passport validity 6 months rule explains why other countries on your itinerary may be stricter than the UK.

What you can do with a UK ETA for US citizens

The official list is generous for a normal vacation, and a UK ETA for US citizens covers the usual reasons Americans visit. You can visit as a tourist, see family or friends, take a business trip, and do a short course of study, all for up to six months. You can also transit through a UK airport if you pass through border control, and you can do certain permitted paid engagements and creative-worker concession work for up to three months.

Plenty of travelers read “six months” and take it as an invitation to string visits together. Resist that.

What you cannot do

You cannot stay longer than six months, work for a UK company or be self-employed there outside the permitted exceptions, claim public benefits, or live in the UK through frequent or back-to-back visits. You cannot marry or register a civil partnership on an ETA; that needs a Marriage Visitor visa.

A border officer who sees a pattern of long visits with short gaps may decide you are living there in practice, and the ETA does not protect you from that call.

Where in the UK it works

The ETA covers England, Scotland, Wales and Northern Ireland, and it also covers Jersey, Guernsey and the Isle of Man. If you plan a ferry hop to the Channel Islands from the south coast, or a weekend on the Isle of Man for the scenery, there is no separate permission to chase.

The Republic of Ireland is a different country with its own rules and does not use the ETA.

Transit rules for a UK ETA for US citizens: layovers at Heathrow, Gatwick and Manchester

Transit is the part that confuses people most, because two travelers on the same itinerary can be in different positions depending on one detail: whether you pass through UK border control. The rule from GOV.UK is simple to state. If you pass through border control at a UK airport before continuing your journey, you need an ETA. If you stay airside the entire time, you do not.

The airside exemption

Since January 2025, travelers who are eligible for an ETA and who transfer airside without passing UK border control do not need one. Picture a flight from Boston to Heathrow and a connecting flight to Athens on one ticket. Your bags are checked through, you follow the transfer signs, and you never see a passport officer. No ETA required.

The government has described this exemption as temporary and says it keeps it under review, which is the single most important caveat in this section.

When you do need the ETA on a layover

• Separate tickets. If you must collect your bags and check in again, you enter the UK. You need the ETA.
• Changing airports. Arriving at Heathrow and departing from Gatwick means leaving the airport, so you pass border control.
• Overnight stay. If you plan to sleep at a hotel in London between flights, you are an ordinary visitor. You need the ETA.
• Leaving the airport for lunch. A six-hour layover and a train into the city is a visit, not a transfer.

What I would do

If your itinerary is borderline, apply. The cost is £20 and the downside of being wrong is a missed connection or a denied boarding. I carry a UK ETA for US citizens on any trip with a UK connection I cannot fully control, such as a delayed first flight that forces a rebooking onto a different carrier.

Check-in staff look at the whole itinerary, and a traveler holding an ETA never has to argue about which side of the border their bags end up on.

Landing is not the same as being cleared

Some travelers who assume they are “only connecting” find out otherwise when an airline reroutes them overnight after a delay. At that point you are no longer making a simple airside transfer, and an ETA already in your email removes the problem before it starts.

Families, dual citizens, Ireland and other special cases

The standard case for a UK ETA for US citizens is a U.S. adult with a U.S. passport and a clean record. Real trips are rarely that tidy. These are the situations I get asked about most, with the official position on each.

Children and babies

Every traveler needs a UK ETA for US citizens, including infants. A parent or guardian can apply on a child’s behalf, and you should use the child’s own passport details and a photo of the child. Do not skip a newborn on the grounds that they are tiny and asleep; the airline will not.

Do the whole family in one session, with all the passports on the table, and put the approval emails in one folder. If a child travels with only one parent, bring the usual supporting paperwork such as a birth certificate and a signed letter from the other parent, since UK border officers may ask.

Dual British or Irish citizens

If you also hold a British or Irish passport, you cannot get an ETA at all. GOV.UK says you must travel on a valid UK passport, a valid Irish passport or a certificate of entitlement. An American who travels on a U.S. passport and says they are also British will run into trouble at check-in.

The official dual-citizens guidance spells out the narrow exceptions, such as an expired British passport issued in 1989 or later that the airline may accept alongside a valid U.S. passport.

Dual citizens of other countries

If you are a U.S. citizen who also holds, say, Canadian or Italian citizenship, you still apply with the passport you plan to use. Choose the one you will show the airline and show at the UK border, and keep it consistent. Do not apply with one passport and fly on the other, because the ETA is tied to a specific document.

Northern Ireland and the Republic of Ireland

Flying into Dublin and driving north to Belfast, the Giant’s Causeway or Derry is one of the best trips in the British Isles, and it is a UK entry. There are no border checks on the road, but the UK rules apply the moment you cross, so you need an ETA. Visit Belfast’s own ETA information page makes the same point for visitors who arrive via the Republic.

U.S. citizens who live in Ireland and carry proof of residence do not need an ETA for travel from within the Common Travel Area. Everyone else on a tourist visit does.

Eurostar, ferries and other ways in

The requirement for a UK ETA for US citizens applies to every route into the country, not only planes. Eurostar checks your authorization before you board in Paris or Brussels, ferry operators check at the port, and coaches that cross by sea do the same. If you plan a London-and-Paris trip by train, the ETA matters even though you never see an airport.

It also applies when you come from another EU country on a low-cost flight, which is exactly where a last-minute trip tends to fall apart.

Criminal records and past refusals

The application asks about criminal convictions and prison sentences. The Home Office guidance for caseworkers says refusal applies when a sentence was 12 months or more, or when a conviction is recent. Overseas convictions that have no UK equivalent should not lead to refusal on that basis alone, and parking offences are not grounds for refusal.

If your history is complicated, read the official guidance and talk to a qualified immigration adviser before applying. I am not one, and nothing in this article is legal advice.

Name changes and passport changes

A new passport means a new UK ETA for US citizens application. A name change on a passport does the same, since the document changes. A renewed U.S. passport arrives with a new number, so a renewal always means a new ETA.

When your old ETA is still valid for a year but your new passport arrives, apply with the new passport details before you book your next trip, not on the way to the airport.

Check-in, border control and eGates

Here is how the day actually unfolds once your UK ETA for US citizens is approved, and it is anticlimactic in the best way.

At the airline desk or app

When you check in, whether online or in person, the airline confirms your ETA against your passport number. That is why the document matters more than the email. Make sure the passport you scan at check-in is the one you applied with.

If the system cannot find an authorization, you will be stopped there. Having the approval email on your phone helps the agent see whether the problem is a typo or a missing ETA.

At UK border control

You will complete the same border process as always. Passport open to the photo page, hat and sunglasses off, phone away. The officer may ask the purpose of your trip, how long you will stay, and where you are staying. Short, direct answers work: “vacation, nine days, hotel in Bloomsbury.”

Have a return or onward ticket available. In my experience, the whole exchange takes under two minutes.

eGates for Americans

U.S. passport holders can use the automated ePassport gates at major UK airports if their passport has the biometric symbol and they are 10 or older. Children between 10 and 17 must be accompanied by an adult. The gates use facial recognition, so there is no conversation at all.

The State Department’s country information page notes that U.S. citizens can use these gates, and Heathrow’s arrivals guide describes how they work. If the gate rejects you, a staffed desk is a few steps away; it is not an alarm.

Leaving the UK

Nothing is needed on the way out. There is no exit authorization. Your ETA simply remains valid for any future trip until its expiry.

If your UK ETA for US citizens is refused

Refusals of a UK ETA for US citizens are uncommon for ordinary tourists, but they exist, and the way the process works can feel harsh. There is no right of appeal against a UK ETA for US citizens decision, and no administrative review for a refusal. If your application is refused, you cannot contest it through the usual channel.

Rejected is not the same as refused

A rejection means the application had a problem the system could not process, such as an unreadable photo, a mismatched identity or a lost-or-stolen passport on record. You can submit a new application with corrected details. A refusal means the Home Office decided you did not meet the suitability requirements. The guidance treats these differently, and you should read the email carefully to see which one you got.

The review window for granted ETAs

If an ETA is granted through the automated process, you have one calendar month from the date of the grant to request a review. That applies to automated grants, not to rejections and refusals, which are never fully automated. In practice most travelers will never use this.

What to do next

If you were refused, the page that explains what you can do with an ETA suggests considering a Standard Visitor visa, which involves a fuller application and a longer wait. Do not reapply for an ETA hoping for a different answer; the same facts produce the same result, and you will have paid twice.

Before you rebook anything, think about whether the trip date can move. A visa application can take weeks, and plenty of travelers need that margin.

Why transparency matters

Misstating something on the application is a bigger risk than the underlying fact. A false answer can be treated as deception and affect future applications to the UK. Whatever your situation, answer truthfully and keep a copy of your answers.

Lookalike sites for the UK ETA for US citizens, and how to avoid paying three times

This is the part that costs real money. Search for “UK ETA” and you will see sponsored results with names like “UK ETA Online” or “ETA UK Visa Service.” Many are not scams in the sense of stealing your card; they are intermediaries that charge you a service fee for filling out the same form. The official guidance warns that other websites may charge more and notes that using them does not speed anything up.

How to spot the real one

The domain ends in gov.uk, the page header says GOV.UK, and the fee is £20. The app is published by the Home Office. If you are asked for £50, a “service fee,” a “rush” option or an extra for “expert review,” you are on the wrong site.

The government’s own ETA page tells you where to go, so I send everyone there first.

If you already paid a middleman

Look at the approval. If it is a real UK ETA for US citizens linked to your passport, you are authorized and the damage is the extra fee. Contact the company and your card issuer about the charge if the pricing was misleading. If no ETA exists, apply properly on the official route and dispute the original charge.

Keep screenshots of the pricing page. They matter if you need to dispute anything.

Other scam patterns

Emails claiming your ETA “will expire” unless you pay again, text messages with a link to “renew your UK entry permit” and social media posts that offer to “fast-track” an ETA are all traps. An approved UK ETA for US citizens lasts two years and needs no renewal fee in that time. The only time you pay again is when you apply for a new one, and you do that yourself, from the official page.

Fitting the UK ETA for US citizens into your trip plan

The UK ETA for US citizens is one small task inside a bigger sequence, and the order matters. My own sequence is: make sure the passport is valid for the dates, book flights, apply for the ETA the same week, then book hotels and trains. That way the ETA is done while you are still in planning mode and not in packing mode.

Three worked examples

The long weekend. A couple flies New York to London on a Thursday night for four days. They apply on Sunday, hold approval by Sunday evening, and forget about it. Cost: £40. Risk: none, because they applied five days out.

The multi-city loop. A family of four flies into Dublin, drives to Belfast and flies home from Edinburgh. Dublin needs no ETA. The moment they cross into Northern Ireland, they are in the UK, so each of the four holds one. Cost: £80, applied for from one laptop.

The tight connection. A solo traveler flies Chicago to Heathrow to Lisbon on one ticket. Bags are checked through and the layover is airside, so no ETA is needed. If the first leg is delayed and the airline rebooks her overnight, she’d want one. She applies anyway for £20 and sleeps better.

Where it touches the rest of your paperwork

The UK ETA for US citizens is a single line on a longer list. Our international travel documents checklist puts it next to passports, insurance and payment cards, and the travel advisory levels explained article shows how to read the State Department’s numbered warnings; the UK currently carries a note to exercise increased caution because of terrorism.

When you start comparing places to sleep, our guide to how to choose a hotel covers fees and cancellation terms, which matter more than the ETA fee ever will.

Common mistakes with the UK ETA

These are the ones I see most often, in roughly the order they cost people money or sleep.

1. Applying through the first search result

The top result is often a paid ad for a service charging triple. Go to gov.uk/eta/apply yourself, or install the app from the link on that page.

2. Waiting until the day before the flight

Most approvals are fast and some are not. An application you submit with 24 hours to spare turns an ordinary delay into a missed trip.

3. Typing the passport number from memory

Copy it from the document, character by character. A wrong digit means a wrong ETA, and you cannot edit it afterward; you pay again.

4. Applying with one passport and flying on another

Dual nationals and people with a recent renewal both do this. The ETA belongs to the passport named in the application, and the airline reads that link at check-in.

5. Forgetting babies and teenagers

The rule is one per person. Count heads at the application stage, not at the desk.

6. Assuming a layover never needs one

A true airside transfer does not. Separate tickets, an overnight stop or a change of airport do. If the itinerary is anything other than a clean single ticket, apply.

7. Reading “six months” as a target

Six months is a ceiling for visits as a tourist. Frequent or long stays that look like living in the UK can lead to refusal at the border.

8. Ignoring the spam folder

The approval email is a one-time message from a government sender. Search your inbox for the reference number before you start worrying.

9. Trusting the ETA to settle everything

It does not guarantee entry. Keep the return ticket, the hotel address and a calm, short answer ready for the officer.

10. Letting the passport run short

If your passport expires in under two years, the ETA expires with it, and the State Department also requires validity for your entire stay. Renew the passport first.

Frequently asked questions about the UK ETA for US citizens

Do US citizens need an ETA to visit the UK?

Yes. Under the rules airlines have enforced since February 2026, a UK ETA for US citizens is required for tourism, family visits, short study and business trips of up to six months. You apply ahead of the trip, and airlines read the authorization at check-in. Dual British or Irish citizens are exempt and travel on that passport instead.

How much does the UK ETA cost?

The fee is £20 per person, roughly $26 to $27, since April 8, 2026. It is the same for adults, children and babies, and it is not refunded after you submit. Anything higher means you are paying a middleman rather than the government.

How long does the ETA take to be approved?

GOV.UK says you will usually have a decision within a day, and it can take up to three working days. I plan around three working days. If you have heard nothing by then, check your junk folder and contact UKVI through webchat, since phone enquiries are not taken.

How long is a UK ETA valid?

Two years, or until your passport expires if that comes first. You can enter as many times as you like in that period and stay up to six months each time. A new passport means a new application.

Can I use one ETA for several family members?

No. Every traveler needs a separate ETA tied to their own passport, including babies. You can apply for them in a single sitting on the website, and you can apply for others in the app only if they are with you.

Do I need an ETA to change planes in London?

Only if you pass through UK border control. If you transfer airside on one ticket and never enter the main terminal or collect bags, you do not need one. A separate booking, an overnight stay or a change of airport means you enter the UK, so you do. The airside exemption is described as temporary.

Do I need an ETA for Scotland, Wales or Northern Ireland?

Yes, one ETA covers all of the UK, plus Jersey, Guernsey and the Isle of Man. Driving from Dublin to Belfast counts as entering the UK even though there is no checkpoint, so you need it for that trip.

What if my ETA application is refused?

There is no appeal against a refusal. GOV.UK suggests applying for a Standard Visitor visa if you have a criminal record or a prior refusal. A rejection caused by a photo or passport problem is different: you can submit a corrected application and pay the fee again.

Is an ETA the same as ESTA or ETIAS?

It works similarly, but each is a separate system for a separate destination. ESTA is for entering the United States, ETIAS is the EU’s version for the Schengen area, and the UK ETA covers only the UK. A trip combining London and Paris needs the UK ETA and, ETIAS as well once it starts.

Do I need to print my ETA?

No. The authorization is digital and linked to your passport. Save the email as a backup, but the airline checks the electronic record. You can look up your status at gov.uk/check-eta if you want to see the expiry date.

One last thing

The UK ETA for US citizens is a boring bit of paperwork, and its only job is to stay boring. Apply early on the real site, enter the passport number slowly, save the email, and think about the layover once. After that, you have two years of London weekends, Highland drives and Belfast detours with nothing more to do.

The people who get burned are almost never the ones who do something clever. They are the ones who do it in the taxi.