Arrows show the approximate locations where the TWA and United planes crashed into the North Rim of the Grand Canyon. The ...

United Airlines resumed operations after it was forced to temporarily ground all mainline flights due to a technology issue, causing delays as the airline worked to resolve the problem.

United Airlines grounded mainline flights at major US airports — including the problem-plagued Newark — for several hours on Wednesday due to a short-lived technology issue and warned of ...

United Airlines is still recovering from a tech outage that grounded flights on Wednesday, with some delays and cancellations Thursday morning.

All flights arriving at O’Hare Airport were halted Wednesday night, as well as flights heading to other airports in the U.S., including Denver and Houston.

A United Airlines system outage is causing flight disruptions on the evening of Aug. 6 with some travelers delayed for hours.