Flights from Seattle Airport SEA to Washington Airport IAD

We've found the cheapest flights to Washington

Returns from £180.46

One-way from £91.81

Flights are available to Seattle-Tacoma International from Washington Dulles International with a choice of 16 airliners, Ethiopian Airlines, Singapore Airlines, Austrian Airlines, Virgin Atlantic, Korean Air, Japan Airlines, Copa Airlines, Brussels Airlines, Avianca, Air Tahiti Nui, China Eastern Airlines, Qatar Airways, United Airlines, Delta Air Lines, Hawaiian Airlines 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 Airlines322332310:1623:00VIEW FLIGHTS
Hawaiian Airlines322332010:1623:00VIEW FLIGHTS
United Airlines222222208:0512:47VIEW FLIGHTS
Delta Air Lines222222209:2522:52VIEW FLIGHTS
Qatar Airways222322010:1623:00VIEW FLIGHTS
China Eastern Airlines222222009:2522:52VIEW FLIGHTS
Air Tahiti Nui211221010:1616:12VIEW FLIGHTS
Virgin Atlantic111111009:2509:25VIEW FLIGHTS
Korean Air111111022:5222:52VIEW FLIGHTS
Japan Airlines111111023:0023:00VIEW FLIGHTS
Copa Airlines111111012:4712:47VIEW FLIGHTS
Brussels Airlines111111008:0516:03VIEW FLIGHTS
Avianca111111008:0512:47VIEW FLIGHTS
Singapore Airlines011101010:1616:12VIEW FLIGHTS
Austrian Airlines010111008:0508:05VIEW FLIGHTS
Ethiopian Airlines101001008:0516:03VIEW 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 10:16 and the latest flights operated at 23:00 and the most common flight numbers are AS316, 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
08:05
AirlineFlightNo
United AirlinesUA2855
Ethiopian AirlinesET1369
Brussels AirlinesSN8850
09:25
AirlineFlightNo
China Eastern AirlinesMU8804
Delta Air LinesDL508
Virgin AtlanticVS3010
10:16
AirlineFlightNo
Air Tahiti NuiTN2465
Alaska AirlinesAS406
Hawaiian AirlinesHA6724
Qatar AirwaysQR2990
12:47
AirlineFlightNo
United AirlinesUA2275
AviancaAV2029
Copa AirlinesCM2765
16:12
AirlineFlightNo
Air Tahiti NuiTN2464
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
22:52
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8779
Delta Air LinesDL541
23:00
AirlineFlightNo
Alaska AirlinesAS316
Hawaiian AirlinesHA6545
Japan AirlinesJL5440
Qatar AirwaysQR3309
VIEW FLIGHTS
Tuesday
08:05
AirlineFlightNo
United AirlinesUA2855
Austrian AirlinesOS7908
AviancaAV2029
Brussels AirlinesSN8850
09:25
AirlineFlightNo
China Eastern AirlinesMU8804
Delta Air LinesDL508
Virgin AtlanticVS3010
12:47
AirlineFlightNo
United AirlinesUA2275
Copa AirlinesCM2765
16:12
AirlineFlightNo
Air Tahiti NuiTN2464
Singapore AirlinesSQ1234
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
Qatar AirwaysQR2112
22:52
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8779
Delta Air LinesDL541
23:00
AirlineFlightNo
Alaska AirlinesAS316
Hawaiian AirlinesHA6545
Japan AirlinesJL5440
Qatar AirwaysQR3309
VIEW FLIGHTS
Wednesday
08:05
AirlineFlightNo
United AirlinesUA2855
09:25
AirlineFlightNo
China Eastern AirlinesMU8804
Delta Air LinesDL508
Virgin AtlanticVS3010
12:47
AirlineFlightNo
United AirlinesUA2275
AviancaAV2029
Copa AirlinesCM2765
16:03
AirlineFlightNo
Ethiopian AirlinesET1369
Brussels AirlinesSN8850
16:12
AirlineFlightNo
Air Tahiti NuiTN2464
Singapore AirlinesSQ1234
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
Qatar AirwaysQR2112
22:52
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8779
Delta Air LinesDL541
23:00
AirlineFlightNo
Alaska AirlinesAS316
Hawaiian AirlinesHA6545
Japan AirlinesJL5440
Qatar AirwaysQR3309
VIEW FLIGHTS
Thursday
08:05
AirlineFlightNo
United AirlinesUA2855
Austrian AirlinesOS7908
AviancaAV2029
Brussels AirlinesSN8850
09:25
AirlineFlightNo
China Eastern AirlinesMU8804
Delta Air LinesDL508
Virgin AtlanticVS3010
10:16
AirlineFlightNo
Air Tahiti NuiTN2465
Singapore AirlinesSQ1234
Alaska AirlinesAS406
Hawaiian AirlinesHA6724
Qatar AirwaysQR2990
12:47
AirlineFlightNo
United AirlinesUA2275
Copa AirlinesCM2765
16:12
AirlineFlightNo
Air Tahiti NuiTN2464
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
Qatar AirwaysQR2112
22:52
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8779
Delta Air LinesDL541
23:00
AirlineFlightNo
Alaska AirlinesAS316
Hawaiian AirlinesHA6545
Japan AirlinesJL5440
Qatar AirwaysQR3309
VIEW FLIGHTS
Friday
08:05
AirlineFlightNo
United AirlinesUA2855
Austrian AirlinesOS7908
Brussels AirlinesSN8850
09:25
AirlineFlightNo
China Eastern AirlinesMU8804
Delta Air LinesDL508
Virgin AtlanticVS3010
10:16
AirlineFlightNo
Air Tahiti NuiTN2465
Alaska AirlinesAS406
Hawaiian AirlinesHA6724
Qatar AirwaysQR2990
12:47
AirlineFlightNo
United AirlinesUA2275
AviancaAV2029
Copa AirlinesCM2765
16:12
AirlineFlightNo
Air Tahiti NuiTN2464
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
22:52
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8779
Delta Air LinesDL541
23:00
AirlineFlightNo
Alaska AirlinesAS316
Hawaiian AirlinesHA6545
Japan AirlinesJL5440
Qatar AirwaysQR3309
VIEW FLIGHTS
Saturday
06:50
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8779
Delta Air LinesDL541
07:01
AirlineFlightNo
Alaska AirlinesAS316
Hawaiian AirlinesHA6545
Qatar AirwaysQR3309
08:05
AirlineFlightNo
United AirlinesUA2855
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
Brussels AirlinesSN8850
09:25
AirlineFlightNo
China Eastern AirlinesMU8804
Delta Air LinesDL508
Virgin AtlanticVS3010
10:16
AirlineFlightNo
Air Tahiti NuiTN2580
Singapore AirlinesSQ1234
Alaska AirlinesAS447
Hawaiian AirlinesHA4926
Japan AirlinesJL5440
Qatar AirwaysQR2974
12:47
AirlineFlightNo
United AirlinesUA2275
AviancaAV2029
Copa AirlinesCM2765
VIEW FLIGHTS
Sunday
08:05
AirlineFlightNo
United AirlinesUA2855
09:25
AirlineFlightNo
Delta Air LinesDL508
10:16
AirlineFlightNo
Alaska AirlinesAS406
12:47
AirlineFlightNo
United AirlinesUA2275
16:12
AirlineFlightNo
Alaska AirlinesAS348
22:52
AirlineFlightNo
Delta Air LinesDL541
23:00
AirlineFlightNo
Alaska AirlinesAS316
VIEW FLIGHTS

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 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 £91.81 ($116 €109.83)
£91.81
$116 | €109.83
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 £180.46 ($228 €215.87)
£180.46
$228 | €215.87
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, Hawaiian Airlines, Japan Airlines, Korean Air, Qatar Airways, 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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