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

We've found the cheapest flights to Washington

Returns from £226.04

One-way from £113.02

Airliners including Copa Airlines, Singapore Airlines, Avianca, Austrian Airlines, Ethiopian Airlines, Brussels Airlines, Virgin Atlantic, Qatar Airways, Lufthansa, KLM, Jet Linx Aviation, Hawaiian Airlines, China Eastern Airlines, Air Tahiti Nui, Delta Air Lines, 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 Airlines221111107:0723:15VIEW FLIGHTS
Delta Air Lines111111107:1007:10VIEW FLIGHTS
Alaska Airlines111111109:5409:54VIEW FLIGHTS
Virgin Atlantic111111007:1007:10VIEW FLIGHTS
Qatar Airways111111009:5409:54VIEW FLIGHTS
Lufthansa111111008:0012:37VIEW FLIGHTS
KLM111111007:1007:10VIEW FLIGHTS
Jet Linx Aviation111111009:5409:54VIEW FLIGHTS
Hawaiian Airlines111111009:5409:54VIEW FLIGHTS
China Eastern Airlines111111007:1007:10VIEW FLIGHTS
Air Tahiti Nui111111009:5409:54VIEW FLIGHTS
Ethiopian Airlines111101007:0723:15VIEW FLIGHTS
Brussels Airlines011111008:0008:00VIEW FLIGHTS
Avianca110101008:0012:37VIEW FLIGHTS
Austrian Airlines010111008:0008:00VIEW FLIGHTS
Singapore Airlines010101009:5409:54VIEW FLIGHTS
Copa Airlines100000012:3712:37VIEW FLIGHTS

Flights from Seattle-Tacoma International to Washington Dulles International are very limited. Only United Airlines operate flights, of which there is only 1 per week. The time of the departure for this flight is 07:07

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
07:10
AirlineFlight  No
China Eastern AirlinesMU8779
KLMKL8009
Delta Air LinesDL508
Virgin AtlanticVS3010
09:54
AirlineFlight  No
Air Tahiti NuiTN2465
Alaska AirlinesAS406
Hawaiian AirlinesHA6444
Qatar AirwaysQR2168
Jet Linx AviationJL5440
12:37
AirlineFlight  No
United AirlinesUA2275
LufthansaLH7487
AviancaAV2029
Copa AirlinesCM2765
23:15
AirlineFlight  No
United AirlinesUA1810
Ethiopian AirlinesET1369
VIEW FLIGHTS
Tuesday
07:07
AirlineFlight  No
United AirlinesUA1810
Ethiopian AirlinesET1369
07:10
AirlineFlight  No
China Eastern AirlinesMU8779
KLMKL8009
Delta Air LinesDL508
Virgin AtlanticVS3010
08:00
AirlineFlight  No
United AirlinesUA1360
Austrian AirlinesOS7908
LufthansaLH7487
AviancaAV2029
Brussels AirlinesSN8850
09:54
AirlineFlight  No
Air Tahiti NuiTN2465
Singapore AirlinesSQ1234
Alaska AirlinesAS406
Hawaiian AirlinesHA6444
Qatar AirwaysQR2168
Jet Linx AviationJL5440
VIEW FLIGHTS
Wednesday
07:10
AirlineFlight  No
China Eastern AirlinesMU8779
KLMKL8009
Delta Air LinesDL508
Virgin AtlanticVS3010
08:00
AirlineFlight  No
United AirlinesUA1360
Ethiopian AirlinesET1369
LufthansaLH7487
Brussels AirlinesSN8850
09:54
AirlineFlight  No
Air Tahiti NuiTN2465
Alaska AirlinesAS406
Hawaiian AirlinesHA6444
Qatar AirwaysQR2168
Jet Linx AviationJL5440
VIEW FLIGHTS
Thursday
07:10
AirlineFlight  No
China Eastern AirlinesMU8779
KLMKL8009
Delta Air LinesDL508
Virgin AtlanticVS3010
08:00
AirlineFlight  No
United AirlinesUA1360
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
LufthansaLH7487
AviancaAV2029
Brussels AirlinesSN8850
09:54
AirlineFlight  No
Air Tahiti NuiTN2465
Singapore AirlinesSQ1234
Alaska AirlinesAS406
Hawaiian AirlinesHA6444
Qatar AirwaysQR2168
Jet Linx AviationJL5440
VIEW FLIGHTS
Friday
07:10
AirlineFlight  No
China Eastern AirlinesMU8779
KLMKL8009
Delta Air LinesDL508
Virgin AtlanticVS3010
08:00
AirlineFlight  No
United AirlinesUA1360
Austrian AirlinesOS7908
LufthansaLH7487
Brussels AirlinesSN8850
09:54
AirlineFlight  No
Air Tahiti NuiTN2465
Alaska AirlinesAS406
Hawaiian AirlinesHA6444
Qatar AirwaysQR2168
Jet Linx AviationJL5440
VIEW FLIGHTS
Saturday
07:10
AirlineFlight  No
China Eastern AirlinesMU8779
KLMKL8009
Delta Air LinesDL508
Virgin AtlanticVS3010
08:00
AirlineFlight  No
United AirlinesUA1360
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
LufthansaLH7487
AviancaAV2029
Brussels AirlinesSN8850
09:54
AirlineFlight  No
Air Tahiti NuiTN2465
Singapore AirlinesSQ1234
Alaska AirlinesAS406
Hawaiian AirlinesHA6444
Qatar AirwaysQR2168
Jet Linx AviationJL5440
VIEW FLIGHTS
Sunday
07:10
AirlineFlight  No
Delta Air LinesDL508
08:00
AirlineFlight  No
United AirlinesUA1360
09:54
AirlineFlight  No
Alaska AirlinesAS406
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

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

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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 £113.02 ($138 €134.10)
£113.02
$138 | €134.10
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 £226.04 ($276 €268.21)
£226.04
$276 | €268.21
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, Jet Linx Aviation, KLM, 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.

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

Search for the cheapest car hire deals at Dulles International Airport

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