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

We've found the cheapest flights to Washington

Returns from £214.29

One-way from £107.15

Airliners including Jet Linx Aviation, Ethiopian Airlines, Singapore Airlines, Copa Airlines, Japan Airlines, Brussels Airlines, Avianca, Austrian Airlines, Korean Air, Delta Air Lines, China Eastern Airlines, Lufthansa, United Airlines, Hawaiian Airlines, Air Tahiti Nui, Qatar Airways, American Airlines 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 Airlines343334300:2323:40VIEW FLIGHTS
Qatar Airways333443007:4323:58VIEW FLIGHTS
American Airlines343334000:2323:58VIEW FLIGHTS
Hawaiian Airlines333333010:0623:58VIEW FLIGHTS
Air Tahiti Nui333333010:0623:58VIEW FLIGHTS
United Airlines222222208:1012:55VIEW FLIGHTS
Lufthansa222222008:1012:55VIEW FLIGHTS
Korean Air111111106:2022:30VIEW FLIGHTS
Delta Air Lines111111122:3022:30VIEW FLIGHTS
China Eastern Airlines111111106:2022:30VIEW FLIGHTS
Japan Airlines111111023:4023:40VIEW FLIGHTS
Brussels Airlines111111008:1008:15VIEW FLIGHTS
Avianca111111012:4612:55VIEW FLIGHTS
Austrian Airlines111111008:1008:15VIEW FLIGHTS
Singapore Airlines110111000:2323:58VIEW FLIGHTS
Copa Airlines101111012:4612:55VIEW FLIGHTS
Ethiopian Airlines101101008:1008:15VIEW FLIGHTS
Jet Linx Aviation100000007:4307:43VIEW FLIGHTS

Alaska Airlines is the most popular airliners who operate this route. They have around 23 a week with times that vary between 00:23 and 23:40.

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
00:23
AirlineFlight  No
Singapore AirlinesSQ1234
07:43
AirlineFlight  No
Qatar AirwaysQR2025
Jet Linx AviationJL5440
08:15
AirlineFlight  No
United AirlinesUA2398
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
LufthansaLH7485
Brussels AirlinesSN8850
10:06
AirlineFlight  No
Air Tahiti NuiTN2471
Alaska AirlinesAS406
Hawaiian AirlinesHA6724
American AirlinesAA9349
Qatar AirwaysQR2162
12:46
AirlineFlight  No
United AirlinesUA2275
LufthansaLH7487
AviancaAV2029
Copa AirlinesCM2765
16:24
AirlineFlight  No
Air Tahiti NuiTN2470
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
American AirlinesAA9375
22:30
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
23:40
AirlineFlight  No
Air Tahiti NuiTN2677
Alaska AirlinesAS369
Hawaiian AirlinesHA6718
American AirlinesAA7424
Japan AirlinesJL5440
Qatar AirwaysQR2065
VIEW FLIGHTS
Tuesday
00:23
AirlineFlight  No
Alaska AirlinesAS348
American AirlinesAA9375
08:15
AirlineFlight  No
United AirlinesUA2398
Austrian AirlinesOS7908
LufthansaLH7485
Brussels AirlinesSN8850
10:06
AirlineFlight  No
Air Tahiti NuiTN2471
Alaska AirlinesAS406
Hawaiian AirlinesHA6724
American AirlinesAA9349
Qatar AirwaysQR2162
12:46
AirlineFlight  No
United AirlinesUA2275
LufthansaLH7487
AviancaAV2029
16:00
AirlineFlight  No
Alaska AirlinesAS345
22:30
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
23:40
AirlineFlight  No
Air Tahiti NuiTN2677
Alaska AirlinesAS369
Hawaiian AirlinesHA6718
American AirlinesAA7424
Japan AirlinesJL5440
Qatar AirwaysQR2065
23:58
AirlineFlight  No
Air Tahiti NuiTN2470
Singapore AirlinesSQ1234
Hawaiian AirlinesHA6717
American AirlinesAA7457
Qatar AirwaysQR2112
VIEW FLIGHTS
Wednesday
07:43
AirlineFlight  No
Qatar AirwaysQR2065
08:15
AirlineFlight  No
United AirlinesUA2398
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
LufthansaLH7485
Brussels AirlinesSN8850
10:06
AirlineFlight  No
Air Tahiti NuiTN2471
Alaska AirlinesAS406
Hawaiian AirlinesHA6724
American AirlinesAA9349
Qatar AirwaysQR2162
12:46
AirlineFlight  No
United AirlinesUA2275
LufthansaLH7487
AviancaAV2029
Copa AirlinesCM2765
16:00
AirlineFlight  No
Alaska AirlinesAS345
22:30
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
23:40
AirlineFlight  No
Air Tahiti NuiTN2677
Alaska AirlinesAS369
Hawaiian AirlinesHA6718
American AirlinesAA7424
Japan AirlinesJL5440
Qatar AirwaysQR2025
23:58
AirlineFlight  No
Air Tahiti NuiTN2470
Hawaiian AirlinesHA6717
American AirlinesAA7457
VIEW FLIGHTS
Thursday
08:10
AirlineFlight  No
United AirlinesUA2398
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
LufthansaLH7485
Brussels AirlinesSN8850
10:06
AirlineFlight  No
Air Tahiti NuiTN2471
Alaska AirlinesAS406
Hawaiian AirlinesHA6724
American AirlinesAA9349
Qatar AirwaysQR2162
12:55
AirlineFlight  No
United AirlinesUA2275
LufthansaLH7487
AviancaAV2029
Copa AirlinesCM2765
16:24
AirlineFlight  No
Air Tahiti NuiTN2470
Singapore AirlinesSQ1234
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
American AirlinesAA9375
Qatar AirwaysQR2112
22:30
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
23:40
AirlineFlight  No
Air Tahiti NuiTN2677
Alaska AirlinesAS369
Hawaiian AirlinesHA6718
American AirlinesAA7424
Japan AirlinesJL5440
Qatar AirwaysQR2025
Qatar AirwaysQR2065
VIEW FLIGHTS
Friday
00:23
AirlineFlight  No
Singapore AirlinesSQ1234
07:43
AirlineFlight  No
Qatar AirwaysQR2065
08:10
AirlineFlight  No
United AirlinesUA2398
Austrian AirlinesOS7908
LufthansaLH7485
Brussels AirlinesSN8850
10:06
AirlineFlight  No
Air Tahiti NuiTN2471
Alaska AirlinesAS406
Hawaiian AirlinesHA6724
American AirlinesAA9349
Qatar AirwaysQR2162
12:55
AirlineFlight  No
United AirlinesUA2275
LufthansaLH7487
AviancaAV2029
Copa AirlinesCM2765
16:24
AirlineFlight  No
Air Tahiti NuiTN2470
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
American AirlinesAA9375
Qatar AirwaysQR2112
22:30
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
23:40
AirlineFlight  No
Air Tahiti NuiTN2677
Alaska AirlinesAS369
Hawaiian AirlinesHA6718
American AirlinesAA7424
Japan AirlinesJL5440
Qatar AirwaysQR2025
VIEW FLIGHTS
Saturday
00:23
AirlineFlight  No
Alaska AirlinesAS348
American AirlinesAA9375
06:20
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
07:43
AirlineFlight  No
Air Tahiti NuiTN2677
Alaska AirlinesAS369
Hawaiian AirlinesHA6718
American AirlinesAA7424
Qatar AirwaysQR2025
08:10
AirlineFlight  No
United AirlinesUA2398
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
LufthansaLH7485
Brussels AirlinesSN8850
12:36
AirlineFlight  No
Air Tahiti NuiTN2308
Singapore AirlinesSQ1234
Alaska AirlinesAS414
Hawaiian AirlinesHA4741
American AirlinesAA7414
Qatar AirwaysQR2009
12:55
AirlineFlight  No
United AirlinesUA2275
LufthansaLH7487
AviancaAV2029
Copa AirlinesCM2765
16:00
AirlineFlight  No
Alaska AirlinesAS345
22:30
AirlineFlight  No
Delta Air LinesDL541
23:58
AirlineFlight  No
Air Tahiti NuiTN2470
Hawaiian AirlinesHA6717
American AirlinesAA7457
Japan AirlinesJL5440
Qatar AirwaysQR2112
VIEW FLIGHTS
Sunday
06:20
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
08:10
AirlineFlight  No
United AirlinesUA2398
10:06
AirlineFlight  No
Alaska AirlinesAS406
12:55
AirlineFlight  No
United AirlinesUA2275
16:24
AirlineFlight  No
Alaska AirlinesAS348
22:30
AirlineFlight  No
Delta Air LinesDL541
23:40
AirlineFlight  No
Alaska AirlinesAS369
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 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 £107.15 ($143 €125.82)
£107.15
$143 | €125.82
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 £214.29 ($286 €251.65)
£214.29
$286 | €251.65
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 £74.93 ($100 €87.99)
£74.93
$100 | €87.99
Check Latest Price
1+ STOP(S)
What is the cheapest return flight from Seattle SEA to Washington IAD?
The cheapest return flight from Seattle SEA to Washington IAD is £149.10 ($199 €175.10)
£149.10
$199 | €175.10
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.

Other Airports Connecting To Dulles International Airport in united states

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

Search for the cheapest car hire deals at Dulles International Airport

Useful Information about Dulles International Airport

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Duty Free Shopping at Dulles International Airport

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

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