In 2026, traveling without a photo ID is possible but significantly more regulated due to the full enforcement of the REAL ID Act that began in May 2025. For domestic U.S. flights, if you arrive at the airport without an acceptable ID (like a REAL ID-compliant license or passport), you must now utilize the TSA ConfirmID system. This involves completing a verification process at the checkpoint where TSA officers use public databases and a set of security questions to confirm your identity. As of February 1, 2026, this alternative verification carries a $45 fee and is not guaranteed to work. If your identity cannot be confirmed through this secondary screening, you will be denied entry to the sterile area of the airport. For international travel, there is no way to bypass the photo ID requirement; a valid passport is mandatory. If you lose your ID while away from home, you should immediately report it to local police and contact your airline; they may allow you to fly if you have other documents like a birth certificate or social security card, but you should expect significant delays and extra physical screening.