When leaving the United States on an international flight in 2026, you generally do not pass through a formal "Exit Customs" checkpoint manned by a human officer, but you must show your passport to your airline multiple times. The airline is legally required to verify that you have a valid passport and the necessary visas for your destination before they allow you to board. Furthermore, the U.S. uses the Advanced Passenger Information System (APIS), which electronically transmits your passport data to Customs and Border Protection (CBP) as soon as you check in, effectively acting as your "exit record." At many major 2026 hubs, you may also encounter Biometric Exit kiosks at the gate, which use facial recognition to confirm your departure. So, while there is no "outbound immigration" stamp for your passport, your identity is strictly verified by both the airline and the government before you leave the country.