Flights from Seattle Airport (SEA) to Dulles International Airport Airport (IAD)

We've found the cheapest flights to Washington

Returns from £225.67

One-way from £102.43

Airliners including SAS, Singapore Airlines, Ethiopian Airlines, Copa Airlines, Avianca, Virgin Atlantic, Korean Air, KLM, Jet Linx Aviation, Iberia, Brussels Airlines, Austrian Airlines, United Airlines, China Eastern Airlines, Qatar Airways, Delta Air Lines, Air Tahiti Nui and Alaska Airlines all offer direct flights between Seattle-Tacoma International to Washington Dulles International. The flight time is approximately 5 Hours 10 Minutes.

The cost of ticket prices to Washington Dulles International United States can vary quite considerably if you travel at certain times of the week especially at weekends. The cheapest flights available will generally be mid week or late in the evening, so if you are on a budget then these are the flight times you should consider. Alternatively, you could book well in advance and you flight could be up to 50% cheaper, especially with budget airliners. If it is possible, you should book your flights 2 or more months in advance as ticket prices will be substantially lower.

On arriving at Washington Dulles International please note the time difference, the time zone at Washington Dulles International is 5.0 GMT compared to 8.0 GMT at Seattle-Tacoma International.

Below you will see all the airlines that fly from Seattle-Tacoma International (SEA) to Washington Dulles International (IAD) and the number of flights they operate each day.

Flights Chart
AirlinerMoTuWeThFrSaSuFirst FlightLast FlightFlights
Alaska Airlines322332307:3516:03VIEW FLIGHTS
Air Tahiti Nui322332007:3516:03VIEW FLIGHTS
Delta Air Lines222222208:5522:30VIEW FLIGHTS
Qatar Airways221332007:3516:03VIEW FLIGHTS
China Eastern Airlines222222008:5522:30VIEW FLIGHTS
United Airlines111222208:0013:00VIEW FLIGHTS
Virgin Atlantic111111008:5508:55VIEW FLIGHTS
Korean Air111111022:3022:30VIEW FLIGHTS
KLM111111022:3022:30VIEW FLIGHTS
Jet Linx Aviation111111016:0316:03VIEW FLIGHTS
Iberia010221007:3510:00VIEW FLIGHTS
Brussels Airlines111111008:0008:06VIEW FLIGHTS
Austrian Airlines111111008:0008:06VIEW FLIGHTS
Avianca110111008:0613:00VIEW FLIGHTS
Singapore Airlines010101016:0316:03VIEW FLIGHTS
Ethiopian Airlines101001008:0608:06VIEW FLIGHTS
Copa Airlines000111013:0013:00VIEW FLIGHTS
SAS110000008:0608:06VIEW FLIGHTS

Alaska Airlines is the most popular airliners who operate this route. They have around 18 a week with times that vary between 07:35 and 16:03.

To book your flight you can visit Alaska Airlines on their website alaskaair.com. You will find up to date information on availability and the latest discounts.

Flight times for the route are summarised in the table below. These time were correct at the time of writing, but please be aware that times may vary from time to time so please check their website for exact times and the dates you wish to fly.

Flights Time In WeekDays
DayFlight TimesFlights
Monday
07:35
AirlineFlight  No
Air Tahiti NuiTN2483
Alaska AirlinesAS338
Qatar AirwaysQR2974
08:06
AirlineFlight  No
SASSK6843
United AirlinesUA1360
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
AviancaAV2029
Brussels AirlinesSN8850
08:55
AirlineFlight  No
China Eastern AirlinesMU8779
Delta Air LinesDL952
Virgin AtlanticVS3010
10:00
AirlineFlight  No
Air Tahiti NuiTN2396
Alaska AirlinesAS406
Qatar AirwaysQR2990
16:03
AirlineFlight  No
Air Tahiti NuiTN2376
Alaska AirlinesAS348
Jet Linx AviationJL5440
22:30
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
KLMKL6624
Delta Air LinesDL719
VIEW FLIGHTS
Tuesday
08:06
AirlineFlight  No
SASSK6843
United AirlinesUA1360
Austrian AirlinesOS7908
AviancaAV2029
Brussels AirlinesSN8850
08:55
AirlineFlight  No
China Eastern AirlinesMU8779
Delta Air LinesDL952
Virgin AtlanticVS3010
10:00
AirlineFlight  No
Air Tahiti NuiTN2396
Alaska AirlinesAS406
IberiaIB1643
Qatar AirwaysQR2990
16:03
AirlineFlight  No
Air Tahiti NuiTN2376
Singapore AirlinesSQ1234
Alaska AirlinesAS348
Qatar AirwaysQR2112
Jet Linx AviationJL5440
22:30
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
KLMKL6624
Delta Air LinesDL719
VIEW FLIGHTS
Wednesday
08:06
AirlineFlight  No
United AirlinesUA1360
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
Brussels AirlinesSN8850
08:55
AirlineFlight  No
China Eastern AirlinesMU8779
Delta Air LinesDL952
Virgin AtlanticVS3010
10:00
AirlineFlight  No
Air Tahiti NuiTN2396
Alaska AirlinesAS406
Qatar AirwaysQR2990
16:03
AirlineFlight  No
Air Tahiti NuiTN2376
Alaska AirlinesAS348
Jet Linx AviationJL5440
22:30
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
KLMKL6624
Delta Air LinesDL719
VIEW FLIGHTS
Thursday
07:35
AirlineFlight  No
Air Tahiti NuiTN2483
Alaska AirlinesAS338
IberiaIB733
Qatar AirwaysQR2974
08:00
AirlineFlight  No
United AirlinesUA1360
Austrian AirlinesOS7908
Brussels AirlinesSN8850
08:55
AirlineFlight  No
China Eastern AirlinesMU8779
Delta Air LinesDL952
Virgin AtlanticVS3010
10:00
AirlineFlight  No
Air Tahiti NuiTN2396
Alaska AirlinesAS406
IberiaIB728
Qatar AirwaysQR2990
13:00
AirlineFlight  No
United AirlinesUA352
AviancaAV2029
Copa AirlinesCM2765
16:03
AirlineFlight  No
Air Tahiti NuiTN2376
Singapore AirlinesSQ1234
Alaska AirlinesAS348
Qatar AirwaysQR2112
Jet Linx AviationJL5440
22:30
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
KLMKL6624
Delta Air LinesDL719
VIEW FLIGHTS
Friday
07:35
AirlineFlight  No
Air Tahiti NuiTN2483
Alaska AirlinesAS338
IberiaIB733
Qatar AirwaysQR2974
08:06
AirlineFlight  No
United AirlinesUA1360
Austrian AirlinesOS7908
Brussels AirlinesSN8850
08:55
AirlineFlight  No
China Eastern AirlinesMU8779
Delta Air LinesDL952
Virgin AtlanticVS3010
10:00
AirlineFlight  No
Air Tahiti NuiTN2396
Alaska AirlinesAS406
IberiaIB1643
Qatar AirwaysQR2990
13:00
AirlineFlight  No
United AirlinesUA352
AviancaAV2029
Copa AirlinesCM2765
16:03
AirlineFlight  No
Air Tahiti NuiTN2376
Alaska AirlinesAS348
Qatar AirwaysQR3400
Jet Linx AviationJL5440
22:30
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
KLMKL6624
Delta Air LinesDL719
VIEW FLIGHTS
Saturday
06:25
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
KLMKL6624
Delta Air LinesDL719
08:06
AirlineFlight  No
United AirlinesUA1360
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
Brussels AirlinesSN8850
08:55
AirlineFlight  No
China Eastern AirlinesMU8779
Delta Air LinesDL952
Virgin AtlanticVS3010
10:00
AirlineFlight  No
Air Tahiti NuiTN2396
Alaska AirlinesAS406
IberiaIB722
Qatar AirwaysQR3345
13:00
AirlineFlight  No
United AirlinesUA352
AviancaAV2029
Copa AirlinesCM2765
16:03
AirlineFlight  No
Air Tahiti NuiTN2376
Singapore AirlinesSQ1234
Alaska AirlinesAS348
Qatar AirwaysQR2112
Jet Linx AviationJL5440
VIEW FLIGHTS
Sunday
07:35
AirlineFlight  No
Alaska AirlinesAS338
08:06
AirlineFlight  No
United AirlinesUA1360
08:55
AirlineFlight  No
Delta Air LinesDL952
10:00
AirlineFlight  No
Alaska AirlinesAS406
13:00
AirlineFlight  No
United AirlinesUA352
16:03
AirlineFlight  No
Alaska AirlinesAS348
22:30
AirlineFlight  No
Delta Air LinesDL719
VIEW FLIGHTS

Other routes are also possible. Flying from a different airport may offer more convenient flight times, so below we have we have put a list of other routes that may well be suitable.

Alternative Direct Routes
RouteStopsDistanceFlying Time
Seattle Boeing Field King County to Dulles05 Hours 10 Minutes
Richmond Vancouver to Dulles05 Hours 14 Minutes

A useful tip to save money to exchange money before you go, or go to a bureau de change outside of the airport when you arrive. The exchange rate within the airport are not very good so try to avoid changing money their if you can.

Planning a trip? Save money on car hire by booking in advance

Search for the cheapest car rental deals in Dulles Virginia, United States

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

DIRECT Alaska Airlines
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 £102.43 ($128 €119.07)
£102.43
$128 | €119.07
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 £225.67 ($282 €262.33)
£225.67
$282 | €262.33
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, Copa 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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Planning a trip? Save money on car rental by booking in advance

Search for the cheapest car hire deals at Dulles International Airport

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