About the UK ETA
The UK Electronic Travel Authorisation (ETA) is a digital entry permit for travelers from eligible countries, allowing short-term visits to the UK without a traditional visa.
With an ETA, you can travel for purposes such as tourism, visiting family or friends, business, short-term study (up to 6 months), paid permitted engagements (up to 30 days), or as a creative worker (up to 3 months).
It also allows for transit through the UK. The ETA is valid for multiple trips until it expires and is electronically linked to your passport.
To use your ETA, present the passport used for your application at the border when you travel. There is no need to print or show your ETA confirmation.
If your passport details change, you will need to apply for a new ETA.