All U.S. passport holders must obtain a UK Electronic Travel Authorisation (ETA) before traveling to the United Kingdom.

The ETA is not a visa. It is a simple online travel authorisation similar to the U.S. ESTA.

How do I apply for a UK ETA?

Apply only through the official UK government website:

https://www.gov.uk/eta/apply

The application takes just a few minutes.

⚠️ Important: There are many convincing scam websites that charge unnecessary fees.

Please use only the official UK government site linked above.