Future trips to Europe will be different for Americans because of a requirement that was scheduled to begin in 2024 for U.S. passport holders. However, EU officials have delayed the launch of the European Travel Information and Authorization System (ETIAS) until spring 2025.

On 2025 the future of global travel will undergo a significant shift, as the European Union (EU) mandates that travelers from the United States and sixty additional countries must obtain authorization via the European Travel Information and Authorization System (ETIAS).

ETIAS is not a visa, but a prerequisite for visa-exempt travelers visiting the European Schengen Zone, including those with connecting flights. The Schengen Zone includes 23 EU countries, four non-EU nations, and three European microstates.

When applying for the new ETIAS, applicants must access the online form and anticipate a response within minutes to 96 hours. In some cases, the response can take up to 30 days if the applicant is required by authorities to take additional steps. Valid travel documents are also required, with a maximum validity of ten years or expiring within three months; some documents will not be accepted. The application form incurs a fee of $7.79 USD. While ETIAS will be mandatory for all travelers, whether for short or long visits, the application will be free of charge for individuals under 18 and over 70 years old.

With a valid ETIAS travel authorization, you can enter the territory of these European countries as often as you’d like for short stays, usually up to 90 days within any 180-day duration. However, it doesn’t guarantee entry. Upon arrival, a border guard will require to see your passport and other necessary documents to verify that you meet the entry requirements.

More info here:
ETIAS