A UK ETA for a London trip is essential for American visitors in 2026, since London is the most popular British destination and the ETA is required before you board. An approved ETA covers your London visit and any side trips across the UK.
UK ETA Key Facts at a Glance
Here is a quick reference for American travelers: the UK ETA costs £20 per person, is valid for up to two years, allows stays of up to six months per visit, and is required for every traveler including children before arrival in Britain.
| Item | Detail (2026) |
|---|---|
| Fee | £20 per person (UK Home Office, 9 April 2025) |
| Validity | Up to 2 years or until passport expires |
| Stay per visit | Up to 6 months |
| Who needs it | All US citizens without a UK visa, including children |
| Processing | Often minutes; allow up to 3 working days |
| Where to apply | Official UK ETA app or GOV.UK |
Do I need a UK ETA to visit London?
Yes, you need a UK ETA to visit London if you are a US citizen without a UK visa, as required by the UK Home Office. London is part of the United Kingdom, so the national ETA rule applies to every visitor arriving for tourism or business.
There is no separate London permit; the UK ETA covers the whole country. Therefore, one authorization lets you explore London and travel onward to Scotland, Wales, or anywhere else in Britain.
In practice, American travelers find the process straightforward once they have done it once. Therefore, keeping a short note of the steps and your approval details makes any repeat trip even faster.
How long is the ETA valid for a London visit?
The ETA is valid for up to two years or until your passport expires, and each London visit can last up to six months. You can return to London multiple times on a single authorization during that period.
This long validity suits repeat visitors and those combining London with European travel. Consequently, a single ETA can cover several London city breaks over two years.
It is worth planning this early rather than at the last minute. As a result, you remove a common source of airport stress and can focus on the trip itself rather than paperwork.
For related reading, see our guides to Scotland Travel from London 2026 — Complete Guide for US Travelers and Windsor Castle Day Trip 2026 — From London for Americans.
What your ETA covers in London
Your ETA covers tourism, visiting friends and family, short business activities, and study under six months in London. It does not permit employment, so working for a London employer requires a separate work visa.
London’s museums, theaters, and landmarks are all open to ETA visitors. In addition, the same authorization lets you use London as a base for day trips around the UK.
Because rules can be updated, it is always sensible to confirm the latest details before you fly. Consequently, a quick check of official guidance close to departure is a smart habit for any visitor.
Applying before your London trip
Apply before your London trip by scanning your passport in the official UK ETA app, taking a photo, answering the suitability questions, paying the £20 fee, and submitting. Decisions usually arrive within minutes.
Apply at least a few days ahead to be safe, and save your approval email so check-in for your London flight is quick and stress-free.
For families especially, a little organization goes a long way here. Handling everyone’s authorization together means no traveler is overlooked at check-in.
You may also find these helpful: London for First-Time American Visitors: Ultimate 2026 Guide, VE Day 81 in London — 8 May 2026 for American Visitors, and Oxford vs Cambridge 2026 — Day Trip for US ETA Visitors.
Making the most of a London trip
Make the most of your London trip by planning transport with a contactless card, booking key attractions early, and using the ETA’s flexibility to add nearby destinations. The authorization removes the paperwork so you can focus on the visit.
London connects easily to the rest of Britain by rail. As a result, many visitors pair the capital with Oxford, Bath, or Edinburgh on the same ETA.
Indeed, the scheme is designed to be simple, but small errors cause most problems. Nevertheless, careful attention to passport details resolves the vast majority of issues before they arise.
More UK Travel Guides for Americans
Before you travel, it helps to read around your trip. The guides below cover payments, transport, airports, and entry rules that complement your UK ETA, so you arrive in Britain fully prepared.
- Chelsea Flower Show 2026 — Visitor Guide for US ETA Travelers
- Stonehenge and Salisbury 2026 — Day Trip from London US Edition
- Brighton Weekend for Americans 2026 – Beach Day Trip from London
- Scotland Road Trip from London: American’s Guide to the Highlands
- Complete Guide: Winter in London – Travel Tips for Families
- London to Paris Eurostar 2026 — Complete Guide for US Travelers
- Contactless Payment London Tube 2026 — Complete Guide for US Travelers
- London in the Fall – Parks, Pubs, and Atmosphere
How the UK ETA Works: Key Numbers
The London ETA sits within a single national scheme. The fee is £20 per person (UK Home Office, 9 April 2025), the authorization lasts up to 2 years, each visit can last up to 6 months, and the rule has applied to US citizens since 8 January 2025.
These figures rarely change between trips, so they are worth memorizing. According to GOV.UK ETA guidance, most applicants receive an automated decision within minutes, although travelers should allow up to 3 working days in case a case needs review. Because the authorization is electronic, there is no sticker or stamp; it is linked digitally to your passport.
How to Apply for a UK ETA Step by Step
To apply, download the official UK ETA app or use GOV.UK, scan your passport, take a photo, answer the short suitability questions, pay the £20 fee by card or mobile wallet, and submit. Each traveler needs their own application.
First, check that you actually need an ETA using the gov.uk visa checker, since British and Irish citizens are exempt. Next, gather a biometric passport, a card, and an email. Finally, keep the approval email safe. Applying through official channels also avoids the inflated handling charges that unofficial websites add on top of the government fee.
At the UK Border and Avoiding Scams
At the UK border, an officer may ask the purpose and length of your visit, where you are staying, and proof of onward travel. Your authorization is checked electronically, so you simply present the passport used in the application.
To stay safe, apply only via the official app or GOV.UK; third-party sites often charge extra and are not the issuing authority. For trip ideas once you arrive, VisitBritain and UK transit rules on GOV.UK offer reliable, up-to-date information for American visitors planning a UK itinerary.
When to Apply and What to Double-Check
Apply for your ETA as soon as your trip and passports are confirmed, ideally several weeks ahead. The authorization lasts up to 2 years, so early approval carries no downside and protects you against the rare case that needs manual review.
Before you submit, double-check three things: that your passport will remain valid for the entire visit, that every name and number matches the passport exactly, and that you have applied for each traveler, including children. However simple the form looks, these small details cause most delays. Therefore, a careful final review is the single most valuable habit. In addition, save each approval email and a copy of the passport used, because keeping clean records makes future trips on the same ETA effortless.
Frequently Asked Questions
Do I need an ETA just to visit London?
Yes. London is in the UK, so the national ETA requirement applies to US visitors.
How long can I stay in London on an ETA?
Up to six months per visit, with multiple visits allowed over two years.
Does the ETA cover trips outside London?
Yes. One ETA covers the whole UK, including Scotland and Wales.
How much is the ETA for a London trip?
The ETA costs £20 per person, including children.
Can I work in London on an ETA?
No. Employment requires a work visa; the ETA is for visits only.
How early should I apply before a London trip?
At least a few days ahead, though many decisions arrive within minutes.
Can I visit London more than once on one ETA?
Yes. The ETA allows multiple visits during its two-year validity.
Final Thoughts
In short, the UK ETA is a quick, low-cost step that every American traveler must complete before visiting Britain. Apply early, double-check your passport details, and keep your approval handy. For more, explore our full library including Scotland Travel from London 2026 — Complete Guide for US Travelers and Windsor Castle Day Trip 2026 — From London for Americans.
Last updated: June 2026. Always confirm current requirements on GOV.UK before you travel.