One flight was canceled at Sea-Tac Airport on Thursday morning. Nine more were delayed.

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Several Southwest Airlines flights at Seattle-Tacoma International Airport were delayed or canceled Thursday morning after systemwide computer glitches stalled the airline’s operations. The problems are largely fixed, the airline said, but operations have struggled to catch up after a rash of cancellations and delays.

One Southwest flight out of Sea-Tac was canceled Thursday and nine were delayed, according to flight-tracking software FlightAware. On Wednesday, 16 were delayed.

Southwest canceled nearly 700 flights Wednesday across its system. Many more were delayed. Early Thursday, the airline canceled more than 220 flights as it tried to get back on track.

The airline apologized for the glitch and subsequent travel troubles in a message posted on Twitter.

“We know we disappointed customers today. We are really, really sorry about that. That is unacceptable to us,” said Linda Rutherford, Southwest’s chief communications officer.

“Most of our systems are back online this morning following yesterday’s technology outages, but recovery will take some time,” Rutherford said in a post Thursday morning. “We expect some cancellations and delays as we position aircraft and crews.”