United Airlines has issued a warning to anyone looking to check-in or book flights online on Wednesday. United said it would be taking down key online and mobile services for about four and a half ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. United Airlines has issued a warning to customers and pre-emptively canceled several flights as the airline takes most of its ...