Flights from Seattle Airport SEA to Washington Airport IAD

We've found the cheapest flights to Washington

Returns from £197.66

One-way from £114.01

Flights are available to Seattle-Tacoma International from Washington Dulles International with a choice of 18 airliners, Jet Linx Aviation, Avianca, Ethiopian Airlines, Japan Airlines, Lufthansa, Brussels Airlines, Austrian Airlines, Singapore Airlines, Korean Air, Delta Air Lines, Copa Airlines, China Eastern Airlines, United 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 Airlines333333309:0523:30VIEW FLIGHTS
Hawaiian Airlines333333100:2323:30VIEW FLIGHTS
American Airlines333333100:2323:30VIEW FLIGHTS
Air Tahiti Nui333333100:2323:30VIEW FLIGHTS
Qatar Airways232333100:2323:30VIEW FLIGHTS
United Airlines222222208:0022:55VIEW FLIGHTS
Singapore Airlines111111100:2016:20VIEW FLIGHTS
Korean Air111111121:5521:55VIEW FLIGHTS
Delta Air Lines111111121:5521:55VIEW FLIGHTS
Copa Airlines111111122:5522:55VIEW FLIGHTS
China Eastern Airlines111111121:5521:55VIEW FLIGHTS
Lufthansa111111008:0008:00VIEW FLIGHTS
Brussels Airlines111111008:0008:00VIEW FLIGHTS
Austrian Airlines111111008:0008:00VIEW FLIGHTS
Japan Airlines111110023:3023:30VIEW FLIGHTS
Ethiopian Airlines101101008:0008:00VIEW FLIGHTS
Avianca010101008:0008:00VIEW FLIGHTS
Jet Linx Aviation001001007:3307:33VIEW FLIGHTS

Alaska Airlines offer the most direct flights from Seattle-Tacoma International to Washington Dulles International with an average of 21 flights a week. The earliest flights are operated at 09:05 and the latest flights operated at 23:30 and the most common flight numbers are AS348, AS367, AS401 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
00:20
AirlineFlightNo
Singapore AirlinesSQ1234
08:00
AirlineFlightNo
United AirlinesUA2217
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
LufthansaLH7485
Brussels AirlinesSN8850
09:05
AirlineFlightNo
Air Tahiti NuiTN2424
Alaska AirlinesAS406
Hawaiian AirlinesHA6724
American AirlinesAA9349
Qatar AirwaysQR3352
16:20
AirlineFlightNo
Air Tahiti NuiTN2543
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
American AirlinesAA9375
21:55
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
22:55
AirlineFlightNo
United AirlinesUA684
Copa AirlinesCM2765
23:30
AirlineFlightNo
Air Tahiti NuiTN2791
Alaska AirlinesAS367
Hawaiian AirlinesHA6718
American AirlinesAA9440
Japan AirlinesJL5440
Qatar AirwaysQR2049
VIEW FLIGHTS
Tuesday
08:00
AirlineFlightNo
United AirlinesUA2497
Austrian AirlinesOS7908
LufthansaLH7485
AviancaAV2029
Brussels AirlinesSN8850
09:05
AirlineFlightNo
Air Tahiti NuiTN2301
Alaska AirlinesAS406
Hawaiian AirlinesHA6724
American AirlinesAA9349
Qatar AirwaysQR2175
16:20
AirlineFlightNo
Air Tahiti NuiTN2543
Singapore AirlinesSQ1234
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
American AirlinesAA9375
Qatar AirwaysQR3352
21:55
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
22:55
AirlineFlightNo
United AirlinesUA684
Copa AirlinesCM2765
23:30
AirlineFlightNo
Air Tahiti NuiTN2791
Alaska AirlinesAS367
Hawaiian AirlinesHA6718
American AirlinesAA9440
Japan AirlinesJL5440
Qatar AirwaysQR2049
VIEW FLIGHTS
Wednesday
07:33
AirlineFlightNo
Jet Linx AviationJL5440
08:00
AirlineFlightNo
United AirlinesUA2497
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
LufthansaLH7485
Brussels AirlinesSN8850
09:05
AirlineFlightNo
Air Tahiti NuiTN2301
Alaska AirlinesAS406
Hawaiian AirlinesHA6724
American AirlinesAA9349
Qatar AirwaysQR3352
16:20
AirlineFlightNo
Air Tahiti NuiTN2543
Singapore AirlinesSQ1234
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
American AirlinesAA9375
21:55
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
22:55
AirlineFlightNo
United AirlinesUA684
Copa AirlinesCM2765
23:30
AirlineFlightNo
Air Tahiti NuiTN2791
Alaska AirlinesAS367
Hawaiian AirlinesHA6718
American AirlinesAA9440
Japan AirlinesJL5440
Qatar AirwaysQR2049
VIEW FLIGHTS
Thursday
08:00
AirlineFlightNo
United AirlinesUA2497
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
LufthansaLH7485
AviancaAV2029
Brussels AirlinesSN8850
09:05
AirlineFlightNo
Air Tahiti NuiTN2424
Alaska AirlinesAS406
Hawaiian AirlinesHA6724
American AirlinesAA9349
Qatar AirwaysQR2175
16:20
AirlineFlightNo
Air Tahiti NuiTN2543
Singapore AirlinesSQ1234
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
American AirlinesAA9375
Qatar AirwaysQR3352
21:55
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
22:55
AirlineFlightNo
United AirlinesUA684
Copa AirlinesCM2765
23:30
AirlineFlightNo
Air Tahiti NuiTN2791
Alaska AirlinesAS367
Hawaiian AirlinesHA6718
American AirlinesAA9440
Japan AirlinesJL5440
Qatar AirwaysQR2049
VIEW FLIGHTS
Friday
00:23
AirlineFlightNo
Qatar AirwaysQR3352
08:00
AirlineFlightNo
United AirlinesUA2497
Austrian AirlinesOS7908
LufthansaLH7485
Brussels AirlinesSN8850
09:05
AirlineFlightNo
Air Tahiti NuiTN2596
Alaska AirlinesAS401
Hawaiian AirlinesHA6724
American AirlinesAA9349
Qatar AirwaysQR2175
16:20
AirlineFlightNo
Air Tahiti NuiTN2543
Singapore AirlinesSQ1234
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
American AirlinesAA9375
21:55
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
22:55
AirlineFlightNo
United AirlinesUA684
Copa AirlinesCM2765
23:30
AirlineFlightNo
Air Tahiti NuiTN2791
Alaska AirlinesAS367
Hawaiian AirlinesHA6718
American AirlinesAA9440
Japan AirlinesJL5440
Qatar AirwaysQR2049
VIEW FLIGHTS
Saturday
05:55
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8804
06:58
AirlineFlightNo
Copa AirlinesCM2765
07:33
AirlineFlightNo
Air Tahiti NuiTN2791
Hawaiian AirlinesHA6718
American AirlinesAA9440
Qatar AirwaysQR2049
Jet Linx AviationJL5440
08:00
AirlineFlightNo
United AirlinesUA2497
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
LufthansaLH7485
AviancaAV2029
Brussels AirlinesSN8850
09:05
AirlineFlightNo
Air Tahiti NuiTN2596
Alaska AirlinesAS401
Hawaiian AirlinesHA6724
American AirlinesAA9349
Qatar AirwaysQR2175
16:20
AirlineFlightNo
Air Tahiti NuiTN2543
Singapore AirlinesSQ1234
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
American AirlinesAA9375
Qatar AirwaysQR3352
21:55
AirlineFlightNo
Delta Air LinesDL541
22:55
AirlineFlightNo
United AirlinesUA684
23:30
AirlineFlightNo
Alaska AirlinesAS367
VIEW FLIGHTS
Sunday
00:23
AirlineFlightNo
Air Tahiti NuiTN2543
Singapore AirlinesSQ1234
Hawaiian AirlinesHA6717
American AirlinesAA9375
Qatar AirwaysQR3352
08:00
AirlineFlightNo
United AirlinesUA2497
09:05
AirlineFlightNo
Alaska AirlinesAS401
16:20
AirlineFlightNo
Alaska AirlinesAS348
21:55
AirlineFlightNo
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
22:55
AirlineFlightNo
United AirlinesUA684
Copa AirlinesCM2765
23:30
AirlineFlightNo
Alaska AirlinesAS367
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
Shelton to Dulles03,764 km (2,339 miles)5 Hours 14 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 Hawaiian 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 £114.01 ($154 €131.38)
£114.01
$154 | €131.38
Check Latest Price
DIRECT Hawaiian 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 £197.66 ($267 €227.78)
£197.66
$267 | €227.78
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 £103.64 ($140 €119.43)
£103.64
$140 | €119.43
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, Copa Airlines, Delta Air Lines, Ethiopian Airlines, Hawaiian Airlines, Japan Airlines, Jet Linx Aviation, Korean Air, Lufthansa, Qatar Airways, Singapore Airlines, 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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