Flights from Seattle Airport SEA to Washington Airport IAD

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Flights are available to Seattle-Tacoma International from Washington Dulles International with a choice of 17 airliners, Singapore Airlines, Ethiopian Airlines, Avianca, Virgin Atlantic, SAS, Korean Air, KLM, Jet Linx Aviation, Iberia, Brussels Airlines, Austrian Airlines, United Airlines, Qatar Airways, China Eastern Airlines, Delta Air Lines, Air Tahiti Nui and Alaska Airlines. The journey time flying from Seattle-Tacoma International to Washington Dulles International United States is around 5 Hours 10 Minutes. With the distance covered being 3,701 Km (2,300 Miles). The airport code for Seattle-Tacoma International is SEA and for Washington Dulles International it is IAD.

The cost of your trip (flights) can change at weekends and at certain times of the day (if there is a choice of flights to your chosen destination. Washington Dulles International United States flights may be normally booked months in advance and this may be the best option if you intend to get the best prices from Seattle-Tacoma International. Flights to Washington Dulles International United States normally increase in price the nearer the journey date, so it is worth trying to book your tickets in advance if you can.

The time zone at Washington Dulles International is 5.0 GMT compared to 8.0 GMT at Seattle-Tacoma International so bare this in mind is you need to make travel arrangements when you arrive at Washington Dulles International.

The table below shows the amount of daily flights in operation from Seattle-Tacoma International (SEA) to Washington Dulles International (IAD).

Flights Chart
AirlinerMoTuWeThFrSaSuFirst FlightLast FlightFlights
Alaska Airlines322332315:4023:59VIEW FLIGHTS
Air Tahiti Nui322332015:4023:59VIEW FLIGHTS
Delta Air Lines222222206:2522:30VIEW FLIGHTS
Qatar Airways221322015:4023:59VIEW FLIGHTS
China Eastern Airlines222222006:2516:50VIEW FLIGHTS
United Airlines111111116:1016:10VIEW FLIGHTS
Virgin Atlantic111111016:5016:50VIEW FLIGHTS
SAS111111016:1016:10VIEW FLIGHTS
Korean Air111111006:2506:25VIEW FLIGHTS
KLM111111006:2506:25VIEW FLIGHTS
Jet Linx Aviation111111023:5923:59VIEW FLIGHTS
Iberia010221015:4018:04VIEW FLIGHTS
Brussels Airlines111111016:1016:10VIEW FLIGHTS
Austrian Airlines111111016:1016:10VIEW FLIGHTS
Avianca110101016:1016:10VIEW FLIGHTS
Singapore Airlines010101023:5923:59VIEW FLIGHTS
Ethiopian Airlines101001016:1016:10VIEW FLIGHTS

Alaska Airlines offer the most direct flights from Seattle-Tacoma International to Washington Dulles International with an average of 18 flights a week. The earliest flights are operated at 15:40 and the latest flights operated at 23:59 and the most common flight numbers are AS338, AS348 and AS406

Contact Alaska Airlines at alaskaair.com to booking a flight or find up to date information on the flight times.

Below you can see the times of all flights. These flight times do vary so we recommend you look on the appropriate airline website for accurate information for the dates you are departing.

Flights Time In WeekDays
DayFlight TimesFlights
Monday
06:25
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8804
KLMKL6624
Delta Air LinesDL719
15:40
AirlineFlightNo
Air Tahiti NuiTN2483
Alaska AirlinesAS338
Qatar AirwaysQR2974
16:10
AirlineFlightNo
SASSK6843
United AirlinesUA1360
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
AviancaAV2029
Brussels AirlinesSN8850
16:50
AirlineFlightNo
China Eastern AirlinesMU8779
Delta Air LinesDL952
Virgin AtlanticVS3010
18:04
AirlineFlightNo
Air Tahiti NuiTN2396
Alaska AirlinesAS406
Qatar AirwaysQR2990
23:59
AirlineFlightNo
Air Tahiti NuiTN2376
Alaska AirlinesAS348
Jet Linx AviationJL5440
VIEW FLIGHTS
Tuesday
06:25
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8804
KLMKL6624
Delta Air LinesDL719
16:10
AirlineFlightNo
SASSK6843
United AirlinesUA1360
Austrian AirlinesOS7908
AviancaAV2029
Brussels AirlinesSN8850
16:50
AirlineFlightNo
China Eastern AirlinesMU8779
Delta Air LinesDL952
Virgin AtlanticVS3010
18:04
AirlineFlightNo
Air Tahiti NuiTN2396
Alaska AirlinesAS406
IberiaIB1643
Qatar AirwaysQR2990
23:59
AirlineFlightNo
Air Tahiti NuiTN2376
Singapore AirlinesSQ1234
Alaska AirlinesAS348
Qatar AirwaysQR2112
Jet Linx AviationJL5440
VIEW FLIGHTS
Wednesday
06:25
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8804
KLMKL6624
Delta Air LinesDL719
16:10
AirlineFlightNo
SASSK6843
United AirlinesUA1360
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
Brussels AirlinesSN8850
16:50
AirlineFlightNo
China Eastern AirlinesMU8779
Delta Air LinesDL952
Virgin AtlanticVS3010
18:04
AirlineFlightNo
Air Tahiti NuiTN2396
Alaska AirlinesAS406
Qatar AirwaysQR2990
23:59
AirlineFlightNo
Air Tahiti NuiTN2376
Alaska AirlinesAS348
Jet Linx AviationJL5440
VIEW FLIGHTS
Thursday
06:25
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8804
KLMKL6624
Delta Air LinesDL719
15:40
AirlineFlightNo
Air Tahiti NuiTN2483
Alaska AirlinesAS338
IberiaIB733
Qatar AirwaysQR2974
16:10
AirlineFlightNo
SASSK6843
United AirlinesUA1360
Austrian AirlinesOS7908
AviancaAV2029
Brussels AirlinesSN8850
16:50
AirlineFlightNo
China Eastern AirlinesMU8779
Delta Air LinesDL952
Virgin AtlanticVS3010
18:04
AirlineFlightNo
Air Tahiti NuiTN2396
Alaska AirlinesAS406
IberiaIB728
Qatar AirwaysQR2990
23:59
AirlineFlightNo
Air Tahiti NuiTN2376
Singapore AirlinesSQ1234
Alaska AirlinesAS348
Qatar AirwaysQR2112
Jet Linx AviationJL5440
VIEW FLIGHTS
Friday
06:25
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8804
KLMKL6624
Delta Air LinesDL719
15:40
AirlineFlightNo
Air Tahiti NuiTN2483
Alaska AirlinesAS338
IberiaIB733
Qatar AirwaysQR2974
16:10
AirlineFlightNo
SASSK6843
United AirlinesUA1360
Austrian AirlinesOS7908
Brussels AirlinesSN8850
16:50
AirlineFlightNo
China Eastern AirlinesMU8779
Delta Air LinesDL952
Virgin AtlanticVS3010
18:04
AirlineFlightNo
Air Tahiti NuiTN2396
Alaska AirlinesAS406
IberiaIB1643
Qatar AirwaysQR2990
23:59
AirlineFlightNo
Air Tahiti NuiTN2376
Alaska AirlinesAS348
Jet Linx AviationJL5440
VIEW FLIGHTS
Saturday
06:25
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8804
KLMKL6624
Delta Air LinesDL719
16:10
AirlineFlightNo
SASSK6843
United AirlinesUA1360
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
AviancaAV2029
Brussels AirlinesSN8850
16:50
AirlineFlightNo
China Eastern AirlinesMU8779
Delta Air LinesDL952
Virgin AtlanticVS3010
18:04
AirlineFlightNo
Air Tahiti NuiTN2396
Alaska AirlinesAS406
IberiaIB722
Qatar AirwaysQR3345
23:59
AirlineFlightNo
Air Tahiti NuiTN2376
Singapore AirlinesSQ1234
Alaska AirlinesAS348
Qatar AirwaysQR2112
Jet Linx AviationJL5440
VIEW FLIGHTS
Sunday
15:40
AirlineFlightNo
Alaska AirlinesAS338
16:10
AirlineFlightNo
United AirlinesUA1360
16:50
AirlineFlightNo
Delta Air LinesDL952
18:04
AirlineFlightNo
Alaska AirlinesAS406
22:30
AirlineFlightNo
Delta Air LinesDL719
23:59
AirlineFlightNo
Alaska AirlinesAS348
VIEW FLIGHTS

You may instead fly from Seattle-Tacoma International and arrive at Washington Dulles International by an alternative airport or airports. The summary of this is in the table below.

Alternative Direct Routes
RouteStopsDistanceFlying Time
Seattle Boeing Field King County to Dulles03,701 km (2,299 miles)5 Hours 10 Minutes
Richmond Vancouver to Dulles03,763 km (2,338 miles)5 Hours 14 Minutes

Remember to have some local currency before travelling to Washington Dulles International as there may not be a bureau de change open upon your arrival.

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Flight Price FAQ - Seattle (SEA) to Washington (IAD)

DIRECT Delta
What is the cheapest direct flight one way from Seattle SEA to Washington IAD?
The cheapest direct flight one way from Seattle SEA to Washington IAD is £100.50 ($127 €118.66)
£100.50
$127 | €118.66
Check Latest Price
DIRECT Alaska Airlines
What is the cheapest direct return flight from Seattle SEA to Washington IAD?
The cheapest direct return flight from Seattle SEA to Washington IAD is £200.99 ($254 €237.32)
£200.99
$254 | €237.32
Check Latest Price
1+ STOP(S)
What is the cheapest flight one way from Seattle SEA to Washington IAD?
The cheapest flight one way from Seattle SEA to Washington IAD is £95.75 ($121 €113.06)
£95.75
$121 | €113.06
Check Latest Price
1+ STOP(S)
What is the cheapest return flight from Seattle SEA to Washington IAD?
The cheapest return flight from Seattle SEA to Washington IAD is £196.24 ($248 €231.72)
£196.24
$248 | €231.72
Check Latest Price
Important Note: Prices shown are taken from searches performed for flights operating during the current month. Please use the "Latest Price" buttons to get the most up to date airfares.

Compare Flight Prices from SEA to IAD

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Flight Info FAQ - Seattle (SEA) to Washington (IAD)

Who flies from Seattle to Washington?
The following airlines fly from Seattle (SEA) to Washington (IAD): Air Tahiti Nui, Alaska Airlines, Austrian Airlines, Avianca, Brussels Airlines, China Eastern Airlines, Delta Air Lines, Ethiopian Airlines, Iberia, Jet Linx Aviation, KLM, Korean Air, Qatar Airways, SAS, Singapore Airlines, United Airlines, Virgin Atlantic.
How far is the flight from Seattle to Washington?
The flight from Seattle to Washington is 3,701KM or 2,300 miles.
How long does the flight from Seattle to Washington to take?
The flight from Seattle to Washington takes 5 Hours 10 Minutes.

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