Flights operate between Seattle (SEA) and Ontario (ONT).
3 airlines operate this route with 5-9 flights daily flights.
Average flight time is 2h 31m - 2h 51m.
Route distance is 962 miles (1548 km).
Route Distance
962 miles (1548 km)
Average Duration
2h 31m - 2h 51m
Airlines Operating This Route
Alaska Airlines, Delta Air Lines, Frontier Airlines
Flight Frequency
Daily Flights
5-9 flights
Weekly Flights
68
Typical Departure Time Ranges
Earliest Departure
07:15
Latest Departure
21:25
Flight Schedule & Filters
Flight Schedule Calendar
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Direct (non-stop) flights from SeaTac (SEA) to Ontario (ONT)
Direct (non-stop) flights operate between SeaTac (SEA) and Ontario (ONT). This popular route is operated by 3 airlines, offering multiple daily departures.• Flight Duration: 2h 31m - 2h 51m (average flight time)• Distance: 962 miles (1548 km) (air miles between airports)• Daily Flights: 5-9 flights (scheduled departures per day)
SeaTac (SEA)
US
Ontario (ONT)
US
FLIGHT TIME
2h 31m - 2h 51m
FLIGHT DISTANCE
962 miles (1548 km)
2h 32m - 2h 51m
07:15
21:25
962 miles (1548 km)
May
3 (Show)
68
Flight Schedule
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Airlines with direct flights from SeaTac (SEA) to Ontario (ONT)
Weather at Ontario (ONT)
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Frequently Asked Questions
Do flights operate between SEA and ONT?
Yes. 8 direct flights operate between Seattle (SEA) and Ontario (ONT).
Which airlines operate this route?
3 airlines operate this route: Alaska Airlines, Delta Air Lines, Frontier Airlines.
How many flights operate daily?
5-9 flights flights operate daily on this route.
What is the average flight duration?
The average flight duration is 2h 31m - 2h 51m.
Is this route operated year-round?
This route operates with 5-9 flights daily flights.
Route data verified regularly by Triposia Travel Research Team.