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9h ago

Alaska Airlines Resumes Flights After Three-Hour IT Ground Stop

Flights resumed late Sunday after the FAA lifted the nationwide halt, with repositioning of aircraft and crews expected to extend delays as the cause remains undisclosed.

FILE - Alaska Airlines aircraft sits in the airline's hangar at Seattle-Tacoma International Airport, Jan. 10, 2024, in SeaTac, Wash. (AP Photo/Lindsey Wasson, File)
An Alaska airlines Boeing 737 takes off from Los Angeles International Airport in Los Angeles, California, on March 6, 2024.
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Alaska Airlines planes are seen at Anchorage airport on Monday, in Deadhorse, Alaska.

Overview

  • An IT system failure detected around 8 p.m. PT on July 20 led Alaska Airlines to request a system-wide ground stop for both Alaska and Horizon Air flights under FAA advisory.
  • The FAA lifted the ground stop about three hours later, with departures resuming by 11 p.m. PT after the airline said initial fixes were applied.
  • Alaska Airlines cautioned that repositioning aircraft and crews to address the operational backlog would likely extend delays through Monday.
  • Neither the carrier nor the FAA has revealed the technical cause of the outage, marking Alaska’s second full-fleet grounding since April 2024.
  • Customers reported being stranded on tarmacs for hours before deplaning, underscoring persistent challenges in crisis communications and digital system resilience.