United Kingdom visa for American citizens
eTA (travel authorization)
🇺🇸 American passport → 🇬🇧 United Kingdom: no visa, but an eta (online authorisation) is required.
How it works
Register online before you fly (minutes, small fee). It links to your passport electronically — airlines check it at check-in, so don't leave it to the airport.
Heads-up: United Kingdom commonly asks for proof of onward travel (airline check-in and border).
Before the airport: run the "Will I board?" checklist for this route →
Capital London · Currency British pound (£) · Dialling +44
Safety advisory: Exercise caution · official advisory ↗
Before you travel
Sorting your United Kingdom trip on the United States passport:
See the whole picture
Every destination for the United States passport, and everyone who can enter United Kingdom.
American passport: all destinations Who can enter United Kingdom Plan the trip