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

We've found the cheapest flights to Washington

Returns from £167.49

One-way from £87.92

Airliners including Jet Linx Aviation, Singapore Airlines, Ethiopian Airlines, Korean Air, KLM, Japan Airlines, Iberia, Copa Airlines, Brussels Airlines, Avianca, Austrian Airlines, Virgin Atlantic, China Eastern Airlines, Delta Air Lines, Qatar Airways, Air Tahiti Nui, Alaska Airlines and United 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
United Airlines443333306:2822:50VIEW FLIGHTS
Alaska Airlines333333307:0723:59VIEW FLIGHTS
Qatar Airways333333010:0023:59VIEW FLIGHTS
Air Tahiti Nui333333010:0023:59VIEW FLIGHTS
Delta Air Lines222222206:0121:55VIEW FLIGHTS
China Eastern Airlines222222105:5617:00VIEW FLIGHTS
Virgin Atlantic111111108:5517:00VIEW FLIGHTS
Korean Air111111005:5621:55VIEW FLIGHTS
KLM111111005:5606:01VIEW FLIGHTS
Japan Airlines111111016:0623:59VIEW FLIGHTS
Iberia020202007:0718:09VIEW FLIGHTS
Copa Airlines111111012:5020:54VIEW FLIGHTS
Brussels Airlines111111008:1016:15VIEW FLIGHTS
Avianca111111008:1016:15VIEW FLIGHTS
Austrian Airlines111111008:1016:15VIEW FLIGHTS
Ethiopian Airlines101111006:5522:50VIEW FLIGHTS
Singapore Airlines010101023:5923:59VIEW FLIGHTS
Jet Linx Aviation000010023:5923:59VIEW FLIGHTS

United Airlines is the most popular airliners who operate this route. They have around 23 a week with times that vary between 06:28 and 22:50.

To book your flight you can visit United Airlines on their website united.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
05:56
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8779
KLMKL6624
10:00
AirlineFlight  No
Alaska AirlinesAS406
12:50
AirlineFlight  No
United AirlinesUA2275
Copa AirlinesCM2765
15:16
AirlineFlight  No
Air Tahiti NuiTN2580
Alaska AirlinesAS338
Qatar AirwaysQR3330
16:06
AirlineFlight  No
Air Tahiti NuiTN2464
Japan AirlinesJL5440
Qatar AirwaysQR2127
16:15
AirlineFlight  No
United AirlinesUA1360
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
AviancaAV2029
Brussels AirlinesSN8850
17:00
AirlineFlight  No
China Eastern AirlinesMU8804
Delta Air LinesDL508
Virgin AtlanticVS3010
18:09
AirlineFlight  No
Air Tahiti NuiTN2465
Qatar AirwaysQR2990
21:55
AirlineFlight  No
Delta Air LinesDL541
22:50
AirlineFlight  No
United AirlinesUA2019
United AirlinesUA8119
23:59
AirlineFlight  No
Alaska AirlinesAS348
VIEW FLIGHTS
Tuesday
06:01
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8779
KLMKL6624
06:28
AirlineFlight  No
United AirlinesUA8119
07:07
AirlineFlight  No
IberiaIB812
08:10
AirlineFlight  No
Austrian AirlinesOS7908
AviancaAV2029
Brussels AirlinesSN8850
08:55
AirlineFlight  No
China Eastern AirlinesMU8804
Virgin AtlanticVS3010
10:00
AirlineFlight  No
Air Tahiti NuiTN2465
12:50
AirlineFlight  No
Copa AirlinesCM2765
15:16
AirlineFlight  No
Air Tahiti NuiTN2580
Alaska AirlinesAS338
Qatar AirwaysQR3330
16:15
AirlineFlight  No
United AirlinesUA1360
17:00
AirlineFlight  No
Delta Air LinesDL508
18:09
AirlineFlight  No
Alaska AirlinesAS406
IberiaIB1643
Qatar AirwaysQR2990
20:54
AirlineFlight  No
United AirlinesUA2275
21:55
AirlineFlight  No
Delta Air LinesDL541
22:50
AirlineFlight  No
United AirlinesUA2019
23:59
AirlineFlight  No
Air Tahiti NuiTN2464
Singapore AirlinesSQ1234
Alaska AirlinesAS348
Japan AirlinesJL5440
Qatar AirwaysQR2112
VIEW FLIGHTS
Wednesday
06:01
AirlineFlight  No
China Eastern AirlinesMU8779
KLMKL6624
Delta Air LinesDL541
06:55
AirlineFlight  No
United AirlinesUA2019
07:07
AirlineFlight  No
Alaska AirlinesAS338
08:10
AirlineFlight  No
United AirlinesUA1360
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
08:55
AirlineFlight  No
China Eastern AirlinesMU8804
Delta Air LinesDL508
Virgin AtlanticVS3010
10:00
AirlineFlight  No
Air Tahiti NuiTN2465
12:50
AirlineFlight  No
AviancaAV2029
Copa AirlinesCM2765
15:16
AirlineFlight  No
Air Tahiti NuiTN2580
Qatar AirwaysQR3330
16:06
AirlineFlight  No
Air Tahiti NuiTN2464
Japan AirlinesJL5440
Qatar AirwaysQR2111
16:15
AirlineFlight  No
Brussels AirlinesSN8850
18:09
AirlineFlight  No
Alaska AirlinesAS406
Qatar AirwaysQR2990
20:54
AirlineFlight  No
United AirlinesUA2275
21:55
AirlineFlight  No
Korean AirKE3019
23:59
AirlineFlight  No
Alaska AirlinesAS348
VIEW FLIGHTS
Thursday
06:01
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8779
KLMKL6624
Delta Air LinesDL541
06:55
AirlineFlight  No
United AirlinesUA2019
07:07
AirlineFlight  No
Alaska AirlinesAS338
08:10
AirlineFlight  No
United AirlinesUA1360
Brussels AirlinesSN8850
08:55
AirlineFlight  No
China Eastern AirlinesMU8804
Delta Air LinesDL508
Virgin AtlanticVS3010
10:00
AirlineFlight  No
Air Tahiti NuiTN2465
IberiaIB1643
Qatar AirwaysQR2990
15:16
AirlineFlight  No
Air Tahiti NuiTN2580
IberiaIB812
Qatar AirwaysQR3330
16:06
AirlineFlight  No
Alaska AirlinesAS348
16:15
AirlineFlight  No
Austrian AirlinesOS7908
AviancaAV2029
18:09
AirlineFlight  No
Alaska AirlinesAS406
20:54
AirlineFlight  No
United AirlinesUA2275
Copa AirlinesCM2765
22:50
AirlineFlight  No
Ethiopian AirlinesET1369
23:59
AirlineFlight  No
Air Tahiti NuiTN2464
Singapore AirlinesSQ1234
Japan AirlinesJL5440
Qatar AirwaysQR2112
VIEW FLIGHTS
Friday
06:01
AirlineFlight  No
China Eastern AirlinesMU8779
KLMKL6624
Delta Air LinesDL541
06:55
AirlineFlight  No
United AirlinesUA2019
Ethiopian AirlinesET1369
08:10
AirlineFlight  No
Austrian AirlinesOS7908
12:50
AirlineFlight  No
United AirlinesUA2275
AviancaAV2029
Copa AirlinesCM2765
15:16
AirlineFlight  No
Air Tahiti NuiTN2580
Alaska AirlinesAS338
Qatar AirwaysQR3330
16:06
AirlineFlight  No
Alaska AirlinesAS348
Japan AirlinesJL5440
16:15
AirlineFlight  No
United AirlinesUA1360
Brussels AirlinesSN8850
17:00
AirlineFlight  No
China Eastern AirlinesMU8804
Delta Air LinesDL508
Virgin AtlanticVS3010
18:09
AirlineFlight  No
Air Tahiti NuiTN2465
Alaska AirlinesAS406
Qatar AirwaysQR2990
21:55
AirlineFlight  No
Korean AirKE3019
23:59
AirlineFlight  No
Air Tahiti NuiTN2464
Qatar AirwaysQR2118
Jet Linx AviationJL5440
VIEW FLIGHTS
Saturday
06:01
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8779
KLMKL6624
Delta Air LinesDL541
07:07
AirlineFlight  No
Air Tahiti NuiTN2580
Alaska AirlinesAS338
IberiaIB812
08:10
AirlineFlight  No
Austrian AirlinesOS7908
10:00
AirlineFlight  No
Air Tahiti NuiTN2465
IberiaIB1643
Qatar AirwaysQR2990
11:15
AirlineFlight  No
Delta Air LinesDL508
12:50
AirlineFlight  No
Copa AirlinesCM2765
15:16
AirlineFlight  No
Qatar AirwaysQR3330
16:06
AirlineFlight  No
Alaska AirlinesAS348
Qatar AirwaysQR2112
16:15
AirlineFlight  No
United AirlinesUA1360
Ethiopian AirlinesET1369
AviancaAV2029
Brussels AirlinesSN8850
18:09
AirlineFlight  No
Alaska AirlinesAS406
19:22
AirlineFlight  No
China Eastern AirlinesMU8804
Virgin AtlanticVS3010
20:54
AirlineFlight  No
United AirlinesUA2275
22:50
AirlineFlight  No
United AirlinesUA2019
23:59
AirlineFlight  No
Air Tahiti NuiTN2464
Singapore AirlinesSQ1234
Japan AirlinesJL5440
VIEW FLIGHTS
Sunday
06:55
AirlineFlight  No
United AirlinesUA2019
15:16
AirlineFlight  No
Alaska AirlinesAS338
16:06
AirlineFlight  No
Alaska AirlinesAS348
16:15
AirlineFlight  No
United AirlinesUA1360
17:00
AirlineFlight  No
China Eastern AirlinesMU8804
Delta Air LinesDL508
Virgin AtlanticVS3010
18:09
AirlineFlight  No
Alaska AirlinesAS406
20:54
AirlineFlight  No
United AirlinesUA2275
21:55
AirlineFlight  No
Delta Air LinesDL541
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 Dulles 05 Hours 10 Minutes
Richmond Vancouver to Dulles 05 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 £87.92 ($116 €104.29)
£87.92
$116 | €104.29
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 £167.49 ($221 €198.69)
£167.49
$221 | €198.69
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, Japan Airlines, Jet Linx Aviation, KLM, 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.

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

Lounges at 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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Washington D. C. Tourist Attractions

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