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
Flight Schedule & Filters
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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)
Washington (IAD)
US
SeaTac (SEA)
US
FLIGHT TIME
5h 35m - 6h 04m
FLIGHT DISTANCE
2313 miles (3722 km)
5h 54m - 6h 4m
07:15
18:34
2313 miles (3722 km)
January
3 (Show)
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.