Running fifteen minutes late isn't the end of the world—unless you're on the way to board a flight, that is. Starting June 3, 2025, United Airlines will require passengers to check in for domestic ...

United Airlines is changing its check-in deadline for domestic flights to 45 minutes before departure. The new policy, effective June 3, aligns with the airline's checked-baggage deadline and policies ...

United Airlines will require all domestic passengers to be checked in for their flights 45 minutes before departure starting June 3. Previously passengers without checked bags were able to cut it a ...