United Airlines passengers are facing a big change beginning Tuesday as the airline shifts how early fliers must check-in for trips. If passengers don't abide by the new rules, United says, their ...

Cutting it close is taking on a new meaning as United Airlines just changed a check-in policy that may make it harder for you to catch your next flight. The airline announced that starting June 3, ...

Stragglers beware: U.S. travelers flying with United Airlines will have to check in to domestic flights a little earlier starting next week. That is, if they're customers only taking carry-on bags.

*Checking in early for a flight is one of the simplest ways to cut down on travel day headaches before you even leave the ...