IE 11 Not Supported

For optimal browsing, we recommend Chrome, Firefox or Safari browsers.

Possible Cyber Attack at Seattle-Tacoma International Airport

The airport said the incident also affects some Port of Seattle systems, and that there’s no estimated time by which systems will be restored. Flights can continue, but some associated services are down.

Empty seats in an airport waiting area with a plane taking off outside the window behind them.
Travelers at the Seattle-Tacoma International Airport faced disruptions over the weekend after a possible cyber attack, the airport said on X.

Flights continued, but reservation check-in systems and flight screens reportedly went down. Also, at least one airline reported disruption affecting the baggage sorting system.

The Port of Seattle — which owns the airport — is experiencing an “Internet and web systems outage,” according to the airport on X. The Port isolated critical systems Saturday, in response to outages. As of Sunday, there was no estimate of when everything would be restored to normal, according to the Seattle-Tacoma International Airport.

The airport urged flyers to check in online and get boarding passes before arriving, as terminals for doing so in-person were down. Flyers were advised to ask their airlines for gate information because this could not be displayed on airport screens. Alaska Airlines warned customers that checked luggage would likely be delayed at their end destinations, due to issues with the airport’s baggage systems. Those checking bags were told to add labels with their names and phone numbers.

As for the Port of Seattle’s other operations, a Port spokesperson told the Seattle Times that phone and email systems were down as of Saturday. The agency posted alternate phone numbers for reaching maritime facilities during the outages.

This isn’t the only recent IT incident to cause trouble for airlines: last month’s faulty CrowdStrike update disrupted flights worldwide.

The Federal Aviation Administration, too, has been paying attention to cyber concerns in the sector. It proposed rules last week that would set certain common cybersecurity obligations for manufacturers of propellers, engines and aircraft.