As summer vacation season begins across Europe, many travelers are preparing for trips to the United States, while Americans are planning holidays across Europe. But before booking flights, hotels, and activities, travelers should remember one important detail: international travel increasingly requires advance electronic authorization.

For many European nationals traveling to the United States for tourism, short business visits, or transit, the Electronic System for Travel Authorization (ESTA) may be required under the Visa Waiver Program. ESTA is not a visa, but it allows eligible travelers to request authorization to travel to the United States for stays of 90 days or less without applying for a traditional visitor visa.

Approved ESTA authorizations are generally valid for two years, or until the traveler’s passport expires, whichever comes first. Travelers should apply before departure and avoid waiting until the last minute.

At the same time, Americans traveling to Europe should be aware of the upcoming European Travel Information and Authorisation System (ETIAS). ETIAS is expected to begin operations in the last quarter of 2026 and will apply to visa-exempt travelers entering participating European countries for short-term stays. The European Union has stated that no action is required from travelers yet and that the specific start date will be announced before launch.

The key takeaway is simple: visa-free travel does not always mean paperwork-free travel.

Whether traveling for vacation, conferences, business meetings, or family visits, travelers should confirm the correct authorization before departure. The rules can differ depending on citizenship, destination, length of stay, and purpose of travel.

If you have questions about travel authorization, visas, business travel, or immigration planning, BridgehouseLaw can help you understand the requirements before your trip begins.