Checking in for your flight as early as possible—typically 24 hours in advance—is always a good idea to prevent any potential ...

United Airlines is changing its check-in cutoff time ahead of the busy summer travel season. The Chicago-based airline will now require check-ins for domestic flights 45 minutes before departure, up ...

Starting June 3, 2025, United Airlines will require passengers to check in for domestic flights at least 45 minutes before departure, replacing its previous 30-minute guideline.

United Airlines recommends arriving at your gate at least 15 minutes before the start of boarding. The previous check-in ...