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Alaska Airlines has resumed operations following an undisclosed technical error affecting its entire system for approximately three hours, the company announced.

The carrier experienced an “IT outage that resulted in a temporary, system-wide ground stop for Alaska Airlines and Horizon Air flights" around 8 p.m. Pacific time Sunday. The stop was lifted at 11 p.m., the Seattle-based company said in a social media post.

“As we reposition our aircraft and crews, there will most likely be residual impacts to our flights. It will take some time to get our overall operations back to normal,” the post said.

The Federal Aviation Administration website had confirmed a ground stop for all Alaska Airlines mainline and Horizon aircraft, referring to an Alaska Airlines subsidiary.

The National Transportation Board last month 

credited the crew of Alaska Airlines flight 1282

 with the survival of passengers when a 

 shortly after takeoff on Jan. 5, 2024, leaving a hole that sucked objects out of the cabin.

In September, Alaska Airlines said it grounded its flights in Seattle briefly due to “significant disruptions” from an unspecified technology problem that was resolved within hours.

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Alaska Airlines says it has resumed operations following an undisclosed technical error affecting its entire system for approximately three hours. The carrier says in a social media post it experienced an IT outage that resulted in a temporary ground stop around 8 p.m. Pacific time Sunday.

Alaska Airlines resumes operations after tech outage grounds all flights

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