During domestic layovers, you are free to leave the airport. If your domestic layover is longer than one hour, you should expect to receive two boarding permits. If you want to check out local points of interest, make sure you get your second boarding pass and print it out before you leave.

Yes, you are generally allowed to leave the airport during a layover, provided you meet the visa and entry requirements of that specific country. For example, if you have a 10-hour layover in London and hold a U.S. passport, you can pass through immigration and explore the city. However, you must factor in the time required to clear customs, travel to the city center, and return through security. In 2026, some airports like Singapore Changi or Seoul Incheon offer free transit tours specifically for travelers with long layovers. It is a high-value peer tip to ensure you have a "multiple-entry" or "transit visa" if your nationality requires one. Also, remember that your checked luggage is usually tagged through to your final destination, so you only need your carry-on. Always aim to be back at the airport at least 3 hours before your connecting flight to navigate the 2026 biometric security gates and ensure you don't miss your departure.