Flights from Seattle Airport SEA to Washington Airport IAD

We've found the cheapest flights to Washington

Returns from £182.18

One-way from £105.95

Flights are available to Seattle-Tacoma International from Washington Dulles International with a choice of 17 airliners, Iberia, Jet Linx Aviation, Avianca, Ethiopian Airlines, Starlux, Japan Airlines, Brussels Airlines, Austrian Airlines, United Airlines, Korean Air, Delta Air Lines, China Eastern Airlines, Qatar Airways, Hawaiian Airlines, American Airlines, 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 Airlines222222206:2323:29VIEW FLIGHTS
Qatar Airways222221106:2322:29VIEW FLIGHTS
Hawaiian Airlines222221106:2323:29VIEW FLIGHTS
American Airlines222221106:2323:29VIEW FLIGHTS
Air Tahiti Nui222221106:2322:29VIEW FLIGHTS
United Airlines111111108:0009:00VIEW FLIGHTS
Korean Air111111100:4016:48VIEW FLIGHTS
Delta Air Lines111111116:4817:48VIEW FLIGHTS
China Eastern Airlines111111100:4016:48VIEW FLIGHTS
Starlux111110106:2322:29VIEW FLIGHTS
Japan Airlines111110108:4423:29VIEW FLIGHTS
Brussels Airlines111111008:0008:00VIEW FLIGHTS
Austrian Airlines111111008:0008:00VIEW FLIGHTS
Ethiopian Airlines101101008:0008:00VIEW FLIGHTS
Jet Linx Aviation100100106:2307:23VIEW FLIGHTS
Avianca010101008:0008:00VIEW FLIGHTS
Iberia010100008:4408:44VIEW FLIGHTS

Alaska Airlines offer the most direct flights from Seattle-Tacoma International to Washington Dulles International with an average of 14 flights a week. The earliest flights are operated at 06:23 and the latest flights operated at 23:29 and the most common flight numbers are AS367 and AS436

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
06:23
AirlineFlightNo
Jet Linx AviationJL5440
08:00
AirlineFlightNo
United AirlinesUA2217
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
Brussels AirlinesSN8850
08:44
AirlineFlightNo
Air Tahiti NuiTN2430
Alaska AirlinesAS436
Hawaiian AirlinesHA6724
American AirlinesAA9349
Qatar AirwaysQR2990
16:48
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
22:29
AirlineFlightNo
Air Tahiti NuiTN2791
Alaska AirlinesAS367
Hawaiian AirlinesHA6718
American AirlinesAA9440
Japan AirlinesJL5440
Qatar AirwaysQR2049
StarluxJX7072
VIEW FLIGHTS
Tuesday
08:00
AirlineFlightNo
United AirlinesUA2217
Austrian AirlinesOS7908
AviancaAV2029
Brussels AirlinesSN8850
08:44
AirlineFlightNo
Air Tahiti NuiTN2430
Alaska AirlinesAS436
Hawaiian AirlinesHA6724
American AirlinesAA9349
IberiaIB7308
Qatar AirwaysQR2990
16:48
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
22:29
AirlineFlightNo
Air Tahiti NuiTN2791
Alaska AirlinesAS367
Hawaiian AirlinesHA6718
American AirlinesAA9440
Japan AirlinesJL5440
Qatar AirwaysQR2049
StarluxJX7072
VIEW FLIGHTS
Wednesday
08:00
AirlineFlightNo
United AirlinesUA2217
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
Brussels AirlinesSN8850
08:44
AirlineFlightNo
Air Tahiti NuiTN2430
Alaska AirlinesAS436
Hawaiian AirlinesHA6724
American AirlinesAA9349
Qatar AirwaysQR2172
16:48
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
22:29
AirlineFlightNo
Air Tahiti NuiTN2791
Alaska AirlinesAS367
Hawaiian AirlinesHA6718
American AirlinesAA9440
Japan AirlinesJL5440
Qatar AirwaysQR2049
StarluxJX7072
VIEW FLIGHTS
Thursday
06:23
AirlineFlightNo
Jet Linx AviationJL5440
08:00
AirlineFlightNo
United AirlinesUA2217
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
AviancaAV2029
Brussels AirlinesSN8850
08:44
AirlineFlightNo
Air Tahiti NuiTN2430
Alaska AirlinesAS436
Hawaiian AirlinesHA6724
American AirlinesAA9349
IberiaIB7308
Qatar AirwaysQR2990
16:48
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
22:29
AirlineFlightNo
Air Tahiti NuiTN2791
Alaska AirlinesAS367
Hawaiian AirlinesHA6718
American AirlinesAA9440
Japan AirlinesJL5440
Qatar AirwaysQR2049
StarluxJX7072
VIEW FLIGHTS
Friday
06:23
AirlineFlightNo
Air Tahiti NuiTN2791
Alaska AirlinesAS367
Hawaiian AirlinesHA6718
American AirlinesAA9440
Qatar AirwaysQR2049
StarluxJX7072
08:00
AirlineFlightNo
United AirlinesUA2217
Austrian AirlinesOS7908
Brussels AirlinesSN8850
08:44
AirlineFlightNo
Air Tahiti NuiTN2556
Alaska AirlinesAS436
Hawaiian AirlinesHA6724
American AirlinesAA9349
Japan AirlinesJL5440
Qatar AirwaysQR2990
16:48
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
VIEW FLIGHTS
Saturday
08:00
AirlineFlightNo
United AirlinesUA2217
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
AviancaAV2029
Brussels AirlinesSN8850
08:44
AirlineFlightNo
Air Tahiti NuiTN2430
Alaska AirlinesAS436
Hawaiian AirlinesHA6724
American AirlinesAA9349
Qatar AirwaysQR2990
16:48
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
23:29
AirlineFlightNo
Alaska AirlinesAS367
VIEW FLIGHTS
Sunday
00:40
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8804
07:23
AirlineFlightNo
Air Tahiti NuiTN2791
Qatar AirwaysQR2071
Jet Linx AviationJL5440
StarluxJX7072
09:00
AirlineFlightNo
United AirlinesUA2217
09:44
AirlineFlightNo
Alaska AirlinesAS436
17:48
AirlineFlightNo
Delta Air LinesDL541
23:29
AirlineFlightNo
Alaska AirlinesAS367
Hawaiian AirlinesHA6718
American AirlinesAA9440
Japan AirlinesJL5440
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

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 £105.95 ($139 €120.27)
£105.95
$139 | €120.27
Check Latest Price
DIRECT Delta
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 £182.18 ($239 €206.79)
£182.18
$239 | €206.79
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 £70.89 ($93 €80.47)
£70.89
$93 | €80.47
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, American Airlines, Austrian Airlines, Avianca, Brussels Airlines, China Eastern Airlines, Delta Air Lines, Ethiopian Airlines, Hawaiian Airlines, Iberia, Japan Airlines, Jet Linx Aviation, Korean Air, Qatar Airways, Starlux, United Airlines.
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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