- A major IT stream break has affected Alaska Airlines
- Its full fleet was grounded and 11 planes were in the sky at the time
- It is not the company’s first IT-related naval examination
Alaska Airlines aircraft is back and runs after a mysterious IT outbreak that are grounded for several hours.
The stop resulted in all the company’s flights being grounded and affected Horizon Air flights -a subsidiary of the Alaskan company.
In addition to the air disorders, remaining delays are expected as the airline repositions aircraft and crews to resume at normal capacity.
Alaska airlines the power outage
“It will take some time to get our overall operations back to normal,” the company explained in an X -post.
It is believed that about 11 flights were in the air during the power cut, which was resolved several hours after first being discovered.
No official explanation has been given for the basic reason, but some signs point to the scattered Spider Ransomware group that recently targeted other victims in the aviation sector, including Qantas, Air Serbia and Westjet.
Hawaiian Airlines, which has also been under Alaskan ownership since the end of 2024, also experienced a cyber event earlier this year.
In June 2025, Hawaiian Airlines shared in an x post: “Hawaiian Airlines addresses a cyber security event that has affected some of our IT systems.”
For Alaska Airlines specifically, this marks the second IT-related naval crew of just over a year. In April 2024, a problem with the system that calculates flight and balance also caused a full grounding.
Interestingly, Microsoft also declared that it experienced “active attacks” on server software on July 20 (via Pakinomist), but few details have been shared about this incident either. It is unclear whether the two events are related.
Techradar Pro Have asked Alaska Airlines for more information about yesterday’s incident, but we did not receive an immediate response.



