The passport comes first
A valid passport is not always a usable one. Many countries require that it remain valid for six months beyond your arrival, and the Schengen countries of Europe require three months beyond your planned departure. Some also want one or two completely blank pages for their stamps. Routine renewal of a US passport takes weeks and expediting costs extra, so look at the expiration date before you look at fares. Enforcement happens at the check-in desk, because an airline that carries an inadmissible passenger pays a fine and flies that passenger home. Arguing with the agent does not work.
Four kinds of permission
- Visa-free entry means you arrive, get stamped and may stay for a fixed period, often 30 or 90 days.
- An electronic travel authorization is a short online form with a small fee, tied to your passport number and completed days before departure. Britain requires one of American visitors, and Europe's Schengen area is preparing its own, after repeated delays.
- An e-visa or a visa on arrival is a real visa with a real fee, obtained online or at the border, sometimes payable only in cash.
- A consular visa means an application, photographs, supporting documents and sometimes an interview, and it can take a month or more.
The State Department publishes a country information page for every destination that says which of these applies to US citizens. Confirm it against the destination's own embassy, because rules change with little notice. Apply only through the official government site, since copycat sites charge several times the fee for the same form.
What the officer may ask
Expect to be asked for proof of onward travel, the address of your first night and evidence that you can pay for your stay. A one-way ticket invites the most questions. Keep the return booking and the first hotel confirmation where you can reach them without a phone signal.
Counting your days
The Schengen rule is 90 days in any rolling 180-day period across the whole zone, not per country, and leaving for a weekend does not reset the clock. Overstaying anywhere can bring a fine, a deportation stamp and a ban on returning. A tourist entry does not permit paid work. Transit through a third country can require its own visa, even if you never leave the airport.
Tip Enroll each trip in the State Department's free Smart Traveler Enrollment Program. The nearest embassy then knows where you are and sends you security alerts for the country.
