IT Outage Paralyzes San Diego International Airport Systems
San Diego International Airport experienced a widespread IT failure that forced airlines to process thousands of passengers manually using paper tickets and iPads.
A widespread technological failure paralyzed check-in and ticketing systems at San Diego International Airport on the morning of September 22, 2026. The IT outage began around 5:30 a.m., impacting operations across both Terminal 1 and Terminal 2.
Because primary airline computer networks went offline, carriers shifted to emergency backup procedures. Gate agents processed thousands of passengers manually using iPads and physical paper tickets to manage the backlog.
The failure resulted in severe delays and massive crowds, with check-in lines extending into concourses and out of terminal doors. Airport officials are investigating the cause of the glitch, though no estimated time for the systems to return to full operation has been provided.
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