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 (ALK.N) said it has canceled 7% of its flights Monday in the aftermath of a ground stop late Sunday prompted by the unexpected failure of a critical piece of hardware at its data cente...

The issue affected major airports like Seattle-Tacoma International, which was forced to ground nearly 50 Alaska flights overnight.