United Kingdom

UK Electronic Travel Authorisation (ETA)

Short answer: U.S. citizens visiting the UK without a visa, including travelers who pass through UK border control while transiting. Before you travel. You need the approved ETA to board. Cost: £20, according to GOV.UK.

How to file

1. Apply on GOV.UK or the official UK ETA app.
2. Scan your passport and add a photo.
3. Pay the £20 fee.
4. Wait for the decision email. The ETA is linked to your passport.

Before you go

• The form does not replace your passport. Check that your passport is valid long enough with our validity rules by country.
• Read the full United Kingdom entry requirements.
• Passport expiring soon? Renew first.

Look-alike websites charge “processing” fees for forms that are free or cheaper on the official portal. Type the official address yourself and check the domain before paying.

Source: GOV.UK (UK Home Office). Checked 2026-10-24. Filing windows and fees change, so confirm on the official site before you travel.