The Sunday cancellations affected nearly 25,000 guests.
Alaska Airlines said it had canceled 170 flights on Sunday and a further 60 on Monday, after the US Federal Aviation Administration (FAA) ordered the grounding of 171 Boeing 737 MAX 9 airplanes to run inspections.
The airline said cancellations would continue through the first half of the week. The Sunday cancellations affected nearly 25,000 guests, added the Seattle-based carrier, which has 65 737 MAX 9 aircraft in its fleet.
The FAA on Saturday ordered the temporary grounding of 171 Boeing jets installed with the same panel after an eight-week-old Alaska Airlines jet was forced to make an emergency landing with a gap in the fuselage.
The door plug tore off the left side of the jet following takeoff from Portland, Oregon, en route to Ontario, California, forcing pilots to turn back and land safely with all 171 passengers and six crew on board.
"They will remain grounded until the FAA is satisfied that they are safe," the agency said of the affected 737 MAX 9 jets in a statement on Sunday.
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