Alaska Airlines temporarily grounded all flights nationwide on July 17 due to a major IT systems outage, causing widespread delays and disruptions. The issue began around 4 a.m. PT and lasted several hours before systems were restored and operations resumed. The airline confirmed the outage was not related to a cyberattack.
Over 140 Alaska and Horizon flights were canceled, and more than 220 were delayed, impacting passengers across multiple airports. Travelers were advised to check their flight status and arrive early, as delays were expected to continue. The airline expressed regret for the inconvenience and is working to accommodate affected passengers.
Officials confirmed that the outage originated internally and not from external interference. By late morning, Alaska Airlines lifted the ground stop and began restoring normal flight schedules. The airline is continuing to assess the full impact and has promised further updates.
A major IT outage forced Alaska Airlines to ground all flights across the U.S., delaying and canceling hundreds. Operations resumed hours later, and the issue was confirmed not to be a cyberattack. Passengers faced travel disruptions and were urged to stay updated.
Alaska Airlines, flight delays, IT system outage
