Alaska Airlines Flight 537 Deals & Information (2025/2026)

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Frequently asked questions

What route does flight number AS537 take?
You'll be landing at Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.) from SEA if you're traveling on flight number AS537. You'll be in the sky for 2 hours and 30 minutes during this trip. What's more, the flight conveniently operates non-stop.
What kind of plane is on flight number AS537?
The Boeing 737-900 is the aircraft model most frequently used for flight AS537. This flight almost always heads off from SEA and touches down at Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.).
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your AS537 flight with Travelocity, please visit our Customer Service Portal.