ETIAS — a new travel authorisation for Europe
The European Travel Information and Authorisation System is a pre-travel authorisation for people who don't need a visa for the Schengen area — US citizens included. You apply online before you fly, pay a small fee, and the authorisation is tied to your passport and lasts across multiple trips.
It is not a visa and it does not change how long you may stay. It is a permission to travel that is checked before boarding.
We are deliberately not printing a start date here. ETIAS has been postponed more than once and is being introduced after the Entry/Exit System below. Check the official page before you book anything, and check it again closer to departure — it is the only source that will be right.