A computer outage Friday interrupted United Airlines' flight departures, airport processing and reservations systems nationwide, leaving many passengers stranded.
Charles Hobart of United Airlines said in an email that the outage occurred at 5:15 p.m. Friday.
"Our technology team is working to resolve the issue as soon as possible," Hobart said in the email. "We apologize for the disruption being caused to travelers at affected airports and we are seeking to resume operations as quickly as possible."
Only two flights were affected at the Seattle-Tacoma International Airport, said airport spokesman Perry Cooper. Cooper noted that United is not one of the airport's major carriers.
The two departing flights are to Denver and San Francisco, according to Sea-Tac airport's website.
The Tri-Cities Airport outside Pasco has United flights under the carrier's regional division, United Express.
Nine United flights arriving from Chicago, Denver, Washington D.C., San Francisco, Jacksonville and Las Vegas were delayed.