Short answer
Online travel authorization
American citizens don't need a full visa for the UK, but must get an electronic travel authorization online before travelling.
How to apply
Visa-exempt visitors (including Americans and Europeans) must get an Electronic Travel Authorisation (ETA) online before travel.
Visa-required visitors apply for a Standard Visitor visa online and give fingerprints at a visa application centre; it allows stays of up to 6 months.
Official website: GOV.UK – Check if you need a UK visa
Before you travel
- Make sure your American passport is valid for at least 6 months beyond your arrival date and has blank pages.
- Carry a return or onward ticket, your hotel booking and proof that you can pay for your stay; border officers can ask for them even when no visa is needed.
- Check whether your airline needs to see your visa or authorization at check-in; many will refuse boarding without it.
- Visas for work, study or long stays follow different rules from the tourist rules on this page.
Visa rules for the UK by passport
 Pakistan | Visa required |
 India | Visa required |
 Bangladesh | Visa required |
 Nigeria | Visa required |
 Philippines | Visa required |
 Egypt | Visa required |
 United States | eTA |
Frequently asked questions
Do American citizens need a visa for the UK?
Online travel authorization. American citizens don't need a full visa for the UK, but must get an electronic travel authorization online before travelling.
How long can American citizens stay in the UK?
The permitted stay depends on the authorization issued; check the official website before travel.
Where do American citizens apply for a United Kingdom visa?
Use the official website: GOV.UK – Check if you need a UK visa (www.gov.uk/check-uk-visa). Avoid unofficial sites that charge extra service fees.
How many countries can American passport holders visit without a visa?
American passport holders can visit 115 countries visa-free and 43 more with a visa on arrival or eTA.
Based on the Passport Index dataset with our verified corrections for recent rule changes, last reviewed October 19, 2026. Entry rules change often and depend on your passport, purpose of travel and onward tickets. Always confirm with the official website or embassy before you book.