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

We've found the cheapest flights to Washington

Returns from £191.32

One-way from £107.20

Airliners including Singapore Airlines, Ethiopian Airlines, Copa Airlines, Starlux, Avianca, Brussels Airlines, Austrian Airlines, Korean Air, Jet Linx Aviation, Delta Air Lines, China Eastern Airlines, Lufthansa, United Airlines, Qatar Airways, Hawaiian Airlines, Air Tahiti Nui, 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 Airlines333344300:2323:30VIEW FLIGHTS
American Airlines333344100:2323:30VIEW FLIGHTS
Hawaiian Airlines333333100:2323:30VIEW FLIGHTS
Air Tahiti Nui333333100:2323:30VIEW FLIGHTS
Qatar Airways233333100:2323:30VIEW FLIGHTS
United Airlines211222208:0013:12VIEW FLIGHTS
Lufthansa211222008:0013:12VIEW FLIGHTS
Korean Air111111106:0122:25VIEW FLIGHTS
Jet Linx Aviation111111100:2323:30VIEW FLIGHTS
Delta Air Lines111111121:5522:25VIEW FLIGHTS
China Eastern Airlines111111106:0122:25VIEW FLIGHTS
Brussels Airlines111111008:0008:00VIEW FLIGHTS
Austrian Airlines111111008:0008:00VIEW FLIGHTS
Starlux011111023:3023:30VIEW FLIGHTS
Avianca110111008:0013:12VIEW FLIGHTS
Ethiopian Airlines101101008:0008:00VIEW FLIGHTS
Copa Airlines100111013:1213:12VIEW FLIGHTS
Singapore Airlines111000000:2316:20VIEW 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 23:30.

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
08:00
AirlineFlight  No
United AirlinesUA2217
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
LufthansaLH7485
Brussels AirlinesSN8850
09:05
AirlineFlight  No
Air Tahiti NuiTN2596
Alaska AirlinesAS401
Hawaiian AirlinesHA6724
American AirlinesAA9349
Qatar AirwaysQR2175
13:12
AirlineFlight  No
United AirlinesUA2131
LufthansaLH7487
AviancaAV2029
Copa AirlinesCM2765
16:20
AirlineFlight  No
Air Tahiti NuiTN2543
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
American AirlinesAA9375
21:55
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
23:30
AirlineFlight  No
Air Tahiti NuiTN2791
Alaska AirlinesAS367
Hawaiian AirlinesHA6718
American AirlinesAA9440
Qatar AirwaysQR2049
Jet Linx AviationJL5440
VIEW FLIGHTS
Tuesday
08:00
AirlineFlight  No
United AirlinesUA2217
Austrian AirlinesOS7908
LufthansaLH7485
AviancaAV2029
Brussels AirlinesSN8850
09:05
AirlineFlight  No
Air Tahiti NuiTN2596
Alaska AirlinesAS401
Hawaiian AirlinesHA6724
American AirlinesAA9349
Qatar AirwaysQR2175
16:20
AirlineFlight  No
Air Tahiti NuiTN2543
Singapore AirlinesSQ1234
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
American AirlinesAA9375
Qatar AirwaysQR3352
21:55
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
23:30
AirlineFlight  No
Air Tahiti NuiTN2791
Alaska AirlinesAS367
Hawaiian AirlinesHA6718
American AirlinesAA9440
Qatar AirwaysQR2049
Jet Linx AviationJL5440
StarluxJX7072
VIEW FLIGHTS
Wednesday
00:23
AirlineFlight  No
Singapore AirlinesSQ1234
Qatar AirwaysQR3352
08:00
AirlineFlight  No
United AirlinesUA2217
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
LufthansaLH7485
Brussels AirlinesSN8850
09:05
AirlineFlight  No
Air Tahiti NuiTN2596
Alaska AirlinesAS401
Hawaiian AirlinesHA6724
American AirlinesAA9349
Qatar AirwaysQR2175
16:20
AirlineFlight  No
Air Tahiti NuiTN2543
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
American AirlinesAA9375
21:55
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
23:30
AirlineFlight  No
Air Tahiti NuiTN2791
Alaska AirlinesAS367
Hawaiian AirlinesHA6718
American AirlinesAA9440
Qatar AirwaysQR2049
Jet Linx AviationJL5440
StarluxJX7072
VIEW FLIGHTS
Thursday
08:00
AirlineFlight  No
United AirlinesUA2217
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
LufthansaLH7485
Brussels AirlinesSN8850
09:05
AirlineFlight  No
Air Tahiti NuiTN2596
Alaska AirlinesAS401
Hawaiian AirlinesHA6724
American AirlinesAA9349
Qatar AirwaysQR2175
13:12
AirlineFlight  No
United AirlinesUA2131
LufthansaLH7487
AviancaAV2029
Copa AirlinesCM2765
16:20
AirlineFlight  No
Air Tahiti NuiTN2543
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
American AirlinesAA9375
Qatar AirwaysQR3352
21:55
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
23:30
AirlineFlight  No
Air Tahiti NuiTN2791
Alaska AirlinesAS367
Hawaiian AirlinesHA6718
American AirlinesAA9440
Qatar AirwaysQR2049
Jet Linx AviationJL5440
StarluxJX7072
VIEW FLIGHTS
Friday
00:23
AirlineFlight  No
Alaska AirlinesAS348
American AirlinesAA9375
Qatar AirwaysQR3352
06:01
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
08:00
AirlineFlight  No
United AirlinesUA2217
Austrian AirlinesOS7908
LufthansaLH7485
Brussels AirlinesSN8850
09:05
AirlineFlight  No
Air Tahiti NuiTN2596
Alaska AirlinesAS401
Hawaiian AirlinesHA6724
American AirlinesAA9349
Qatar AirwaysQR2175
13:12
AirlineFlight  No
United AirlinesUA2131
LufthansaLH7487
AviancaAV2029
Copa AirlinesCM2765
16:20
AirlineFlight  No
Air Tahiti NuiTN2543
Alaska AirlinesAS422
Hawaiian AirlinesHA6717
American AirlinesAA7457
21:55
AirlineFlight  No
Delta Air LinesDL541
23:30
AirlineFlight  No
Air Tahiti NuiTN2791
Alaska AirlinesAS367
Hawaiian AirlinesHA6718
American AirlinesAA9440
Qatar AirwaysQR2049
Jet Linx AviationJL5440
StarluxJX7072
VIEW FLIGHTS
Saturday
00:23
AirlineFlight  No
Alaska AirlinesAS422
American AirlinesAA7457
06:01
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
07:33
AirlineFlight  No
Air Tahiti NuiTN2791
Alaska AirlinesAS367
Hawaiian AirlinesHA6718
American AirlinesAA9440
Qatar AirwaysQR2049
StarluxJX7072
08:00
AirlineFlight  No
United AirlinesUA2217
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
LufthansaLH7485
Brussels AirlinesSN8850
10:14
AirlineFlight  No
Air Tahiti NuiTN2556
Alaska AirlinesAS406
Hawaiian AirlinesHA6724
American AirlinesAA9349
Qatar AirwaysQR2990
13:12
AirlineFlight  No
United AirlinesUA2131
LufthansaLH7487
AviancaAV2029
Copa AirlinesCM2765
16:20
AirlineFlight  No
Air Tahiti NuiTN2543
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
American AirlinesAA9375
Qatar AirwaysQR3352
Jet Linx AviationJL5440
21:55
AirlineFlight  No
Delta Air LinesDL541
VIEW FLIGHTS
Sunday
00:23
AirlineFlight  No
Air Tahiti NuiTN2543
Hawaiian AirlinesHA6717
American AirlinesAA9375
Qatar AirwaysQR3352
Jet Linx AviationJL5440
08:00
AirlineFlight  No
United AirlinesUA2217
10:14
AirlineFlight  No
Alaska AirlinesAS406
13:12
AirlineFlight  No
United AirlinesUA2131
16:20
AirlineFlight  No
Alaska AirlinesAS348
22:25
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
23:25
AirlineFlight  No
Alaska AirlinesAS367
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

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 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 £107.20 ($144 €123.34)
£107.20
$144 | €123.34
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 £191.32 ($257 €220.14)
£191.32
$257 | €220.14
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 £102.73 ($138 €118.21)
£102.73
$138 | €118.21
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

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, American Airlines, Austrian Airlines, Avianca, Brussels Airlines, China Eastern Airlines, Copa Airlines, Delta Air Lines, Ethiopian Airlines, Hawaiian Airlines, Jet Linx Aviation, Korean Air, Lufthansa, Qatar Airways, Singapore Airlines, Starlux, 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

Lounges at Dulles International Airport

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

View...
Eating and Drinking at Dulles International Airport

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

View...
Duty Free Shopping at Dulles International Airport

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

View...
Washington D. C. Tourist Attractions

Things to see and do in and around Washington D. C. in the United States of America

View...