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 ...

So, if it seems like you are going to miss your flight, it's better to let the airline know before the flight leaves the ...