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Flights operate between Ontario (ONT) and SeaTac (SEA).

3 airlines operate this route with 4-9 flights daily flights.

Average flight time is 2h 40m - 3h 07m.

Route distance is 962 miles (1548 km).

Route Distance

962 miles (1548 km)

Average Duration

2h 40m - 3h 07m

Airlines Operating This Route

Alaska Airlines, Delta Air Lines, Frontier Airlines

Flight Frequency

Daily Flights

4-9 flights

Weekly Flights

52

Typical Departure Time Ranges

Earliest Departure

06:00

Latest Departure

19:21
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Flight Schedule & Filters

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Flight Schedule Calendar

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Direct (non-stop) flights from Ontario (ONT) to SeaTac (SEA)

Direct (non-stop) flights operate between Ontario (ONT) and SeaTac (SEA). This popular route is operated by 3 airlines, offering multiple daily departures.Flight Duration: 2h 40m - 3h 07m (average flight time)Distance: 962 miles (1548 km) (air miles between airports)Daily Flights: 4-9 flights (scheduled departures per day)

ONT
Ontario (ONT)

US

SEA
SeaTac (SEA)

US

FLIGHT TIME

2h 40m - 3h 07m

FLIGHT DISTANCE

962 miles (1548 km)
Flight time
2h 53m - 3h 4m
Earliest flight
06:00
Last flight
19:21
Distance
962 miles (1548 km)
Cheapest month
April
Airlines
3 (Show)
Flights per week
52

Flight Schedule

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Airlines with direct flights from Ontario (ONT) to SeaTac (SEA)

Weather at SeaTac (SEA)

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Frequently Asked Questions

Do flights operate between ONT and SEA?

Yes. 8 direct flights operate between Ontario (ONT) and Seattle (SEA).

Which airlines operate this route?

3 airlines operate this route: Alaska Airlines, Delta Air Lines, Frontier Airlines.

How many flights operate daily?

4-9 flights flights operate daily on this route.

What is the average flight duration?

The average flight duration is 2h 40m - 3h 07m.

Is this route operated year-round?

This route operates with 4-9 flights daily flights.

Route data verified regularly by Triposia Travel Research Team.

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