Direct flights from Ontario to Seattle
All flights from ONT to SEA non-stop. There are direct flights from Ontario International Airport, California, USA to Seattle Tacoma International (SEA), Washington, USA every day of the week with Delta Air Lines, Alaska Airlines and Frontier Airlines. The flight distance is 962 miles and the trip usually takes about 2 hours and 49 minutes.
Airlines with non-stop routes:
Delta Air Lines
Alaska Airlines
Frontier Airlines
Flight schedule from Ontario to Seattle with Delta Air Lines
This is a weekly direct flight schedule for Delta Air Lines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.
Flight
The timetable & schedule information was updated at 2024-03-15
Flight schedule from Ontario to Seattle with Alaska Airlines
This is a weekly direct flight schedule for Alaska Airlines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.
Flight
The timetable & schedule information was updated at 2024-03-15
Flight schedule from Ontario to Seattle with Frontier Airlines
This is a weekly direct flight schedule for Frontier Airlines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.
Flight
The timetable & schedule information was updated at 2024-03-15
Ontario to Seattle flight departures
Select a date to see all scheduled flight departures between ONT to SEA.
ONT - SEA information
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Distance962 miles (1548 km)
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Flight time2 hours and 49 minutes
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AirlinesDeltaAlaska AirlinesFrontier Airlines
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AlliancesOne WorldSky TeamStar Alliance
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ClassesEconomyBusinessFirst Class
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Delta AircraftEmbraer 170 / 175 / 190 / 195
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Alaska Airlines AircraftsBoeing 737 PassengerEmbraer 170 / 175 / 190 / 195
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Frontier Airlines AircraftAirbus A318 / A319 / A320 / A321
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Departure TerminalTerminal 2 (Alaska Airlines)
Unpublished Flight Rates From Ontario to Seattle