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Flights operate between Washington (IAD) and SeaTac (SEA).

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

Average flight time is 5h 35m - 6h 04m.

Route distance is 2313 miles (3722 km).

Route Distance

2313 miles (3722 km)

Average Duration

5h 35m - 6h 04m

Airlines Operating This Route

Delta Air Lines, Alaska Airlines, United Airlines

Flight Frequency

Daily Flights

3-4 flights

Weekly Flights

35

Typical Departure Time Ranges

Earliest Departure

07:15

Latest Departure

18:34
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Flight Schedule & Filters

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Flight Schedule Calendar

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Direct (non-stop) flights from Washington (IAD) to SeaTac (SEA)

Direct (non-stop) flights operate between Washington (IAD) and SeaTac (SEA). This popular route is operated by 3 airlines, offering multiple daily departures.Flight Duration: 5h 35m - 6h 04m (average flight time)Distance: 2313 miles (3722 km) (air miles between airports)Daily Flights: 3-4 flights (scheduled departures per day)

IAD
Washington (IAD)

US

SEA
SeaTac (SEA)

US

FLIGHT TIME

5h 35m - 6h 04m

FLIGHT DISTANCE

2313 miles (3722 km)
Flight time
5h 54m - 6h 4m
Earliest flight
07:15
Last flight
18:34
Distance
2313 miles (3722 km)
Cheapest month
January
Airlines
3 (Show)
Flights per week
35

Flight Schedule

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Airlines with direct flights from Washington (IAD) to SeaTac (SEA)

Weather at SeaTac (SEA)

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Frequently Asked Questions

Do flights operate between IAD and SEA?

Yes. 4 direct flights operate between Washington (IAD) and Seattle (SEA).

Which airlines operate this route?

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

How many flights operate daily?

3-4 flights flights operate daily on this route.

What is the average flight duration?

The average flight duration is 5h 35m - 6h 04m.

Is this route operated year-round?

This route operates with 3-4 flights daily flights.

Route data verified regularly by Triposia Travel Research Team.

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