Flights from Seattle Airport SEA to Washington Airport IAD

We've found the cheapest flights to Washington

Returns from £216.68

One-way from £102.34

Flights are available to Seattle-Tacoma International from Washington Dulles International with a choice of 15 airliners, Singapore Airlines, Avianca, Ethiopian Airlines, Austrian Airlines, Virgin Atlantic, Lufthansa, Jet Linx Aviation, China Eastern Airlines, Brussels Airlines, United Airlines, Qatar Airways, Delta Air Lines, Hawaiian 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 Airlines211221207:0016:05VIEW FLIGHTS
Hawaiian Airlines211221007:0016:05VIEW FLIGHTS
Air Tahiti Nui211221007:0016:05VIEW FLIGHTS
United Airlines111111108:0508:05VIEW FLIGHTS
Qatar Airways111211007:0016:05VIEW FLIGHTS
Delta Air Lines111111109:2509:25VIEW FLIGHTS
Virgin Atlantic111111009:2509:25VIEW FLIGHTS
Lufthansa111111008:0508:05VIEW FLIGHTS
Jet Linx Aviation111111007:0016:05VIEW FLIGHTS
China Eastern Airlines111111009:2509:25VIEW FLIGHTS
Brussels Airlines111111008:0508:05VIEW FLIGHTS
Ethiopian Airlines101101008:0508:05VIEW FLIGHTS
Austrian Airlines010111008:0508:05VIEW FLIGHTS
Singapore Airlines100110016:0516:05VIEW FLIGHTS
Avianca010101008:0508:05VIEW FLIGHTS

Currently Alaska Airlines offer the most direct flights from to Washington Dulles International from Seattle-Tacoma International with only 1 flight weekly. The time of the departure is 07:00

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
07:00
AirlineFlightNo
Air Tahiti NuiTN2402
Alaska AirlinesAS338
Hawaiian AirlinesHA6451
Qatar AirwaysQR2990
08:05
AirlineFlightNo
United AirlinesUA1360
Ethiopian AirlinesET1369
LufthansaLH7487
Brussels AirlinesSN8850
09:25
AirlineFlightNo
China Eastern AirlinesMU8804
Delta Air LinesDL508
Virgin AtlanticVS3010
16:05
AirlineFlightNo
Air Tahiti NuiTN2464
Singapore AirlinesSQ1234
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
Jet Linx AviationJL5440
VIEW FLIGHTS
Tuesday
07:00
AirlineFlightNo
Air Tahiti NuiTN2465
Alaska AirlinesAS338
Hawaiian AirlinesHA6451
Qatar AirwaysQR2990
Jet Linx AviationJL5440
08:05
AirlineFlightNo
United AirlinesUA1360
Austrian AirlinesOS7908
LufthansaLH7487
AviancaAV2029
Brussels AirlinesSN8850
09:25
AirlineFlightNo
China Eastern AirlinesMU8804
Delta Air LinesDL508
Virgin AtlanticVS3010
VIEW FLIGHTS
Wednesday
07:00
AirlineFlightNo
Air Tahiti NuiTN2465
Alaska AirlinesAS338
Hawaiian AirlinesHA6451
Qatar AirwaysQR2990
Jet Linx AviationJL5440
08:05
AirlineFlightNo
United AirlinesUA1360
Ethiopian AirlinesET1369
LufthansaLH7487
Brussels AirlinesSN8850
09:25
AirlineFlightNo
China Eastern AirlinesMU8804
Delta Air LinesDL508
Virgin AtlanticVS3010
VIEW FLIGHTS
Thursday
07:00
AirlineFlightNo
Air Tahiti NuiTN2402
Alaska AirlinesAS338
Hawaiian AirlinesHA6451
Qatar AirwaysQR2990
08:05
AirlineFlightNo
United AirlinesUA1360
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
LufthansaLH7487
AviancaAV2029
Brussels AirlinesSN8850
09:25
AirlineFlightNo
China Eastern AirlinesMU8804
Delta Air LinesDL508
Virgin AtlanticVS3010
16:05
AirlineFlightNo
Air Tahiti NuiTN2464
Singapore AirlinesSQ1234
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
Qatar AirwaysQR2112
Jet Linx AviationJL5440
VIEW FLIGHTS
Friday
07:00
AirlineFlightNo
Air Tahiti NuiTN2402
Alaska AirlinesAS338
Hawaiian AirlinesHA6451
Qatar AirwaysQR2112
08:05
AirlineFlightNo
United AirlinesUA1360
Austrian AirlinesOS7908
LufthansaLH7487
Brussels AirlinesSN8850
09:25
AirlineFlightNo
China Eastern AirlinesMU8804
Delta Air LinesDL508
Virgin AtlanticVS3010
16:05
AirlineFlightNo
Air Tahiti NuiTN2464
Singapore AirlinesSQ1234
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
Jet Linx AviationJL5440
VIEW FLIGHTS
Saturday
07:50
AirlineFlightNo
Air Tahiti NuiTN2465
Alaska AirlinesAS338
Hawaiian AirlinesHA6451
Qatar AirwaysQR2990
Jet Linx AviationJL5440
08:05
AirlineFlightNo
United AirlinesUA1360
09:25
AirlineFlightNo
China Eastern AirlinesMU8804
Delta Air LinesDL508
Virgin AtlanticVS3010
16:03
AirlineFlightNo
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
LufthansaLH7487
AviancaAV2029
Brussels AirlinesSN8850
VIEW FLIGHTS
Sunday
07:00
AirlineFlightNo
Alaska AirlinesAS338
08:05
AirlineFlightNo
United AirlinesUA1360
09:25
AirlineFlightNo
Delta Air LinesDL508
16:05
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.

Planning a Holiday or Business Trip?

Find cheap vehicle rental deals in Seattle

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

DIRECT United
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 £102.34 ($128 €123.17)
£102.34
$128 | €123.17
Check Latest Price
DIRECT United
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 £216.68 ($271 €260.77)
£216.68
$271 | €260.77
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

Was your flight delayed or cancelled?

Was your flight delayed or cancelled?

You may be eligible to receive up to 600 EUR compensation per person in your party.

Claim Now!

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, Hawaiian Airlines, Jet Linx Aviation, Lufthansa, 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.

Alternative Airports in United States with Connections from Seattle Airport

Looking for the best hire car deals?

Search for the cheapest vehicle hire deals at SEA

Useful Information about Seattle Airport

Lounges at Seattle Airport

See all the airport lounges, locations and opening times available at Seattle Airport

View...
Eating and Drinking at Seattle Airport

See all bars and restaurants at Seattle Airport, including locations and if they are before or after check-in

View...
Duty Free Shopping at Seattle Airport

See all shops available at Seattle Airport - plan your duty free shopping in advance

View...
Seattle Tourist Attractions

From wine tasting to a coffee & chocolate walking tour, just some of the things to see in Seattle..

View...