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Passports, REAL ID, and entry documents for US travellers

August 19, 2026 · 8 min read

Passports, REAL ID, and entry documents for US travellers

A fare is not permission to enter a country. Airlines board you only if documents look sufficient; immigration decides after you land. Azurovia does not check passports. If a document is wrong, the seller still sold a ticket that you may not be able to fly.

Domestic US: REAL ID

For flights inside the United States, TSA requires adult passengers to present an acceptable ID. State driver’s licenses must be REAL ID compliant unless you use another acceptable document such as a passport. Check TSA’s current list before you leave for the airport. Children on domestic flights are treated differently from adults.

International: passports

US citizens need a passport book for most air borders (a passport card is not enough for international flights). Many countries want six months’ validity beyond your stay and a blank visa page. Names must match the ticket — see name corrections.

Authorizations: ESTA, eTA, visas

Europe’s ETIAS, the US ESTA for visitors coming here, Canada eTA, UK ETA, and classic visas are government products with their own sites. Airlines may deny boarding without them. Transit can require a visa even if you do not “enter.” A cheap connection through a third country is a document problem as much as a schedule problem.

What to do before you search

If the trip is international, confirm passport dates first. Then search on Azurovia. We still only compare flights in USD.