Flights from Washington to Seattle
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Washington Dulles International (IAD) to Seattle-Tacoma International (SEA) at a glance
- flights a week
- 21
- airlines
- 3
- flight time
- 5h 35m - 9h 44m
- distance
- 2,300 mi (3,701 km)
- first and last departure
- 07:00 - 17:17
Washington Dulles International (IAD) to Seattle-Tacoma International (SEA) flight schedule
21 flights a week. Departure and arrival times are local.
FlightDepartsArrivesDurationDaysAircraft
AS 409
Alaska Airlines
07:00
Washington Dulles International
09:50
Seattle-Tacoma International
5h 50m
Mon, Fri, Sat, Sun
Boeing 737-800
DL 1015
Delta
07:00
Washington Dulles International
10:05
Seattle-Tacoma International
6h 5m
Daily
Airbus A220-300
AS 409
Alaska Airlines
07:05
Washington Dulles International
09:55
Seattle-Tacoma International
5h 50m
Sun
Boeing 737-900
AS 409
Alaska Airlines
07:46
Washington Dulles International
10:36
Seattle-Tacoma International
5h 50m
Mon, Tue, Wed, Thu, Fri, Sat
Boeing 737-800
AS 737
Alaska Airlines
17:16
Washington Dulles International
20:12
Seattle-Tacoma International
5h 56m
Mon, Fri, Sat, Sun
Boeing 737-800
AS 737
Alaska Airlines
17:17
Washington Dulles International
20:13
Seattle-Tacoma International
5h 56m
Daily
Boeing 737-800
Seasonal and one-off flights
Not operating in the next two weeks. The first of them is on 1 December.
FlightDepartsArrivesDurationDaysAircraft
UA 684
United Airlines
15:14
Washington Dulles International
21:58
Seattle-Tacoma International
9h 44m
Seasonal
Boeing 737
AS 737
Alaska Airlines
17:18
Washington Dulles International
20:27
Seattle-Tacoma International
6h 9m
Seasonal
Boeing 737-900
UA 2731
United Airlines
08:50
Washington Dulles International
11:57
Seattle-Tacoma International
6h 7m
Seasonal
Boeing 737-900
AS 737
Alaska Airlines
17:31
Washington Dulles International
20:32
Seattle-Tacoma International
6h 1m
Seasonal
Boeing 737-900
DL 1015
Delta
07:05
Washington Dulles International
10:05
Seattle-Tacoma International
6h
Seasonal
Airbus A220-300
UA 684
United Airlines
15:15
Washington Dulles International
21:59
Seattle-Tacoma International
9h 44m
Seasonal
Boeing 737
AS 737
Alaska Airlines
17:30
Washington Dulles International
20:33
Seattle-Tacoma International
6h 3m
Seasonal
Boeing 737-900
AS 448
Alaska Airlines
07:00
Washington Dulles International
09:48
Seattle-Tacoma International
5h 48m
Seasonal
Boeing 737-900
UA 1128
United Airlines
17:35
Washington Dulles International
20:40
Seattle-Tacoma International
6h 5m
Seasonal
Boeing 737-800
UA 684
United Airlines
15:45
Washington Dulles International
21:56
Seattle-Tacoma International
9h 11m
Seasonal
Boeing 757-300
AS 1556
Alaska Airlines
10:00
Washington Dulles International
12:48
Seattle-Tacoma International
5h 48m
Seasonal
Boeing 737-900
UA 1700
United Airlines
09:00
Washington Dulles International
11:35
Seattle-Tacoma International
5h 35m
Seasonal
Boeing 737-900
UA 1907
United Airlines
13:10
Washington Dulles International
15:45
Seattle-Tacoma International
5h 35m
Seasonal
Boeing 737-900
Days of the week are taken from the schedule for the next 14 days; schedules change by season. Seattle is 3 hours behind Washington.
Airlines flying Washington Dulles International (IAD) to Seattle-Tacoma International (SEA)
Nonstop flights a week by the current schedule
Alaska Airlines
Delta
United AirlinesOther airport combinations Washington to Seattle
Airports with nonstop flights between the two cities, busiest first
Frequently asked questions
How many nonstop flights are there from Washington Dulles International (IAD) to Seattle-Tacoma International (SEA)?
21 nonstop flights a week by the current schedule, 10 flight numbers.
How long is the flight from Washington Dulles International (IAD) to Seattle-Tacoma International (SEA)?
From 5 hours 35 minutes to 9 hours 44 minutes nonstop, depending on the flight.
Which airlines fly nonstop from Washington Dulles International (IAD) to Seattle-Tacoma International (SEA)?
Alaska Airlines (14 a week), Delta (7 a week) and United Airlines.
How far is Seattle-Tacoma International (SEA) from Washington Dulles International (IAD)?
2,300 mi (3,701 km) in a straight line.
What are the earliest and latest flights from Washington Dulles International (IAD) to Seattle-Tacoma International (SEA)?
The first departure is at 07:00 (Alaska Airlines), the last at 17:17 (Alaska Airlines), local time.