Technical problems were delaying Southwest Airlines flights nationwide Wednesday, including at the Portland International Jetport.

A Southwest spokesman told the Dallas Morning News that there was an outage that caused issues with multiple technology systems.

At the Portland jetport, one Southwest flight to Baltimore scheduled to leave at 3:15 p.m. Wednesday was delayed nearly two hours because of the computer problems, said Paul Bradbury, jetport director. By 5 p.m., the flight’s passengers began the boarding process, Bradbury said.

A second flight, scheduled to depart Portland for Baltimore at 5:45 p.m., was also likely to be delayed, but how long the delay may last wasn’t known, Bradbury said around 5 p.m. He said federal rules about how long a flight crew can work each day will also become limiting factors.

“Their system will be running long,” Bradbury said. “The pilot and flight crews are still here, and their clocks are still ticking.”