All travelers flying on a domestic flight must present a valid (unexpired) photo ID issued by the state or federal government. Undocumented individuals may use the following forms of ID accepted by TSA: State photo identity card. State driver's license.

Yes, U.S. citizens can fly domestically within the United States without a passport, provided they have another form of federally accepted identification. As of May 2025 and into 2026, the most common form of ID for domestic travel is a REAL ID-compliant driver's license or state ID, which is marked with a gold or black star in the top right corner. If your license is not REAL ID-compliant, you must use an alternative like a U.S. Passport, a Passport Card, a Global Entry card, or a U.S. military ID. For passengers 17 and younger traveling domestically with an adult, no photo ID is typically required by the TSA. If you lose your ID just before a flight, the TSA has an "identity verification" process (TSA ConfirmID) that involves answering several personal questions and paying a processing fee (around $45), though this may cause significant delays at the checkpoint. While you don't need a passport for the 50 states, you may need one for certain U.S. territories; while Puerto Rico and the U.S. Virgin Islands do not require a passport for citizens, travel to Guam or the Northern Mariana Islands often involves more complex documentation checks.