United Airlines is changing how early you need to check in for flights — and if you miss the new cutoff, your flight could be canceled

United Airlines is changing how early you need to check in for flights — and if you miss the new cutoff, you may be left behind

United Airlines passengers are facing a big change beginning Tuesday as the airline shifts how early fliers must check-in for trips.

United Airlines is changing how early you need to check in for flights — and if you miss the new cutoff, your flight could be canceled

United Airlines passengers are facing a big change beginning Tuesday as the airline shifts how early fliers must check-in for trips.