Seattle-Tacoma International Airport confirmed that a nationwide Customs and Border Protection computer outage snarled passport control lines for about an hour, leaving arriving international travelers stuck in long queues before federal systems came back online. The airport's response came after a traveler flagged the delays on social media, and it mirrors a pattern of CBP technology failures that have disrupted U.S. airports periodically for nearly a decade.
Airport Responds to Frustrated Traveler
The acknowledgment came in a reply posted from Sea-Tac's official account, run under the username FlySea, after a traveler tagged several news outlets describing the disruption. According to Seattle-Tacoma Intl. Airport
, “CBP systems were down for about an hour nationwide, but CBP got things moving again as quickly as possible. Thanks for your patience.” The airport, the only official account representing the SeaTac, Washington facility, signed the message with the initial “May” and thanked the user directly for their patience during the delay.
The original post that prompted the airport's reply reported that passport control was down nationwide and was displayed with a time of 00:23, with no time zone specified. Separate reports described disruptions and long queues at other hubs, including JFK and LAX, during the same nationwide outage affecting CBP passport processing systems.
A Familiar Problem for Federal Border Systems
This is far from the first time CBP's digital infrastructure has buckled under pressure. A nationwide system outage on August 16, 2019, stranded thousands of incoming international travelers for up to 2.5 hours at hubs including Washington Dulles, JFK, and LAX, as documented by The Washington Post. During that incident, officers were forced to manually process arriving passengers to maintain border security while systems were restored.
An even larger failure struck on January 2, 2017, when a four-hour nationwide CBP system collapse disrupted passport processing for international travelers across the country, including about 13,000 passengers at Miami International Airport alone. That outage hit on one of the busiest holiday travel days of the year, compounding the backlog.
Software Glitches, Not Hackers, Behind Past Failures
Subsequent federal investigations into the January 2017 and August 2019 incidents found the disruptions stemmed from internal software configuration defects and unapplied database patches rather than cyberattacks, the inspector general's office determined. A follow-up review found that an unapplied Oracle database patch directly triggered the 2019 nationwide outage. The same oversight office had warned years earlier, in a September 2017 audit, that frequent IT outages at international airports were forcing CBP officers to rely on backup systems, creating processing backlogs and raising public safety concerns tied to weakened pre-screening capabilities.
During the 2019 outage, officers manually screened arriving passengers while retaining access to security-related databases. During the 2019 event, airport operators including LAX and the Port Authority of New York and New Jersey dispatched extra staff and guest assistance teams to customs halls to manage crowd flow while federal officers worked through the backlog manually, as reported by MPR News.
Sea-Tac's Own History With Tech Disruptions
Seattle-Tacoma travelers have particular reason to be wary of IT failures. In August 2024, a cyberattack disrupted airport systems, including flight display screens and baggage handling.
Sea-Tac has an International Arrivals Facility for international processing. Saturday's outage underscored how CBP system disruptions can affect international traveler processing.
