Alaska Airlines on Sunday, July 20 grounded all of its flights over a tech issue, but resumed its flights shortly after in the early hours of July 21, 2025.

Alaska Airlines grounded all its flights due to an undisclosed technical error affecting its entire system, the carrier announced early Monday.

“We apologize to our guests for this inconvenience. There will be residual impacts to our operation throughout the evening,” it said in its statement.