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 ...

United Airlines will implement a stricter check-in deadline, which could impact thousands of passengers starting June 3. Under the new policy, passengers on domestic flights with or without checked ...

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.