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 ...

HOUSTON — If you're taking a flight on United Airlines soon, you'll want to get to the airport a little earlier than usual after the airline's new check-in policy went into effect on Tuesday.

The airline will now be aligned with other carriers’ check-in times. United Airlines is changing its check-in cutoff time ahead of the busy summer travel season. The Chicago-based airline will now ...