In the United States, you need a valid U.S. government-issued photo ID or a passport from your country of origin to travel through security. You must show that the name on your boarding pass matches the legal name on your unexpired government-issued ID.

For any flight in 2026, the documentation required depends on whether the journey is domestic or international. For domestic flights, a valid government-issued photo ID that is REAL ID-compliant is mandatory in the United States; common examples include a driver's license or a state ID card. For international flights, the absolute essential is a valid passport with at least six months of validity remaining from your date of return. Additionally, depending on your destination, you may need an Electronic Travel Authorization (like ETIAS for Europe or ESTA for the US) or a physical paper visa. You should also carry a printed or digital copy of your boarding pass and proof of return or onward travel, which immigration officers frequently request. In 2026, while many pandemic-era restrictions have eased, some countries still require digital health declarations or proof of specific vaccinations (like Yellow Fever). It is also highly recommended to carry a copy of your travel insurance policy and a list of emergency contacts, as well as a "Minor Consent to Travel" form if you are traveling alone with a child who does not share your last name.