A computer malfunction kept United Airlines planes from taking off for two hours Wednesday from Chicago's O'Hare International Airport, and the delays are lingering.
But a an airport spokesman in Denver says the issue isn't causing any problems there.
United spokeswoman Robin Urbanski in Chicago says the systemwide outage lasted from 7 a.m. to 9 a.m.
The cause is not known.
At O'Hare International Airport, spokeswoman Wendy Abrams says United's inbound and outbound flights are experiencing delays of between one and two hours.
Denver International Airport spokesman Steve Klodt says operations at DIA have not been affected.
Passengers on United flights at DIA and O'Hare reported being told by pilots that flights were not able to take off because of computer problems.
United is the dominant carrier at DIA, and employs about 6,000 people in the Denver area.
The carrier also serves Colorado Springs, and provides service to Grand Junction via United Express.