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

We've found the cheapest flights to Washington

Returns from £203.54

One-way from £104.03

Airliners including Singapore Airlines, Ethiopian Airlines, Copa Airlines, Japan Airlines, Brussels Airlines, Avianca, Austrian Airlines, Korean Air, Delta Air Lines, China Eastern Airlines, Lufthansa, Hawaiian Airlines, American Airlines, Air Tahiti Nui, United Airlines, Alaska Airlines and Qatar Airways 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
Qatar Airways233332005:3421:40VIEW FLIGHTS
United Airlines222222208:1512:46VIEW FLIGHTS
Alaska Airlines222222210:0021:40VIEW FLIGHTS
Lufthansa222222008:1512:46VIEW FLIGHTS
Hawaiian Airlines222222010:0021:40VIEW FLIGHTS
American Airlines222222010:0021:40VIEW FLIGHTS
Air Tahiti Nui222222010:0021:40VIEW FLIGHTS
Korean Air111111122:3022:30VIEW FLIGHTS
Delta Air Lines111111122:3022:30VIEW FLIGHTS
China Eastern Airlines111111122:3022:30VIEW FLIGHTS
Japan Airlines111111021:4021:40VIEW FLIGHTS
Brussels Airlines111111008:1508:15VIEW FLIGHTS
Avianca111111012:4612:46VIEW FLIGHTS
Austrian Airlines111111008:1508:15VIEW FLIGHTS
Ethiopian Airlines101101008:1508:15VIEW FLIGHTS
Copa Airlines101110012:4612:46VIEW FLIGHTS
Singapore Airlines0000010VIEW FLIGHTS

Qatar Airways is the most popular airliners who operate this route. They have around 16 a week with times that vary between 05:34 and 21:40.

To book your flight you can visit Qatar Airways on their website qatarairways.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
08:15
AirlineFlight  No
United AirlinesUA2398
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
LufthansaLH7485
Brussels AirlinesSN8850
10:00
AirlineFlight  No
Air Tahiti NuiTN2465
Alaska AirlinesAS406
Hawaiian AirlinesHA6613
American AirlinesAA9349
Qatar AirwaysQR4284
12:46
AirlineFlight  No
United AirlinesUA2275
LufthansaLH7487
AviancaAV2029
Copa AirlinesCM2765
21:40
AirlineFlight  No
Air Tahiti NuiTN2611
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
American AirlinesAA9375
Japan AirlinesJL5440
Qatar AirwaysQR8844
22:30
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
VIEW FLIGHTS
Tuesday
08:15
AirlineFlight  No
United AirlinesUA2398
Austrian AirlinesOS7908
LufthansaLH7485
Brussels AirlinesSN8850
10:00
AirlineFlight  No
Air Tahiti NuiTN2465
Alaska AirlinesAS406
Hawaiian AirlinesHA6613
American AirlinesAA9349
Qatar AirwaysQR4284
12:46
AirlineFlight  No
United AirlinesUA2275
LufthansaLH7487
AviancaAV2029
21:40
AirlineFlight  No
Air Tahiti NuiTN2611
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
American AirlinesAA9375
Japan AirlinesJL5440
Qatar AirwaysQR2112
Qatar AirwaysQR8844
22:30
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
VIEW FLIGHTS
Wednesday
08:15
AirlineFlight  No
United AirlinesUA2398
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
LufthansaLH7485
Brussels AirlinesSN8850
10:00
AirlineFlight  No
Air Tahiti NuiTN2465
Alaska AirlinesAS406
Hawaiian AirlinesHA6613
American AirlinesAA9349
Qatar AirwaysQR4284
12:46
AirlineFlight  No
United AirlinesUA2275
LufthansaLH7487
AviancaAV2029
Copa AirlinesCM2765
21:40
AirlineFlight  No
Air Tahiti NuiTN2611
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
American AirlinesAA9375
Japan AirlinesJL5440
Qatar AirwaysQR2112
Qatar AirwaysQR8844
22:30
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
VIEW FLIGHTS
Thursday
05:34
AirlineFlight  No
Qatar AirwaysQR8844
08:15
AirlineFlight  No
United AirlinesUA2398
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
LufthansaLH7485
Brussels AirlinesSN8850
10:00
AirlineFlight  No
Air Tahiti NuiTN2465
Alaska AirlinesAS406
Hawaiian AirlinesHA6613
American AirlinesAA9349
Qatar AirwaysQR4284
12:46
AirlineFlight  No
United AirlinesUA2275
LufthansaLH7487
AviancaAV2029
Copa AirlinesCM2765
21:40
AirlineFlight  No
Air Tahiti NuiTN2611
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
American AirlinesAA9375
Japan AirlinesJL5440
Qatar AirwaysQR2112
22:30
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
VIEW FLIGHTS
Friday
08:15
AirlineFlight  No
United AirlinesUA2398
Austrian AirlinesOS7908
LufthansaLH7485
Brussels AirlinesSN8850
10:00
AirlineFlight  No
Air Tahiti NuiTN2465
Alaska AirlinesAS406
Hawaiian AirlinesHA6613
American AirlinesAA9349
Qatar AirwaysQR4284
12:46
AirlineFlight  No
United AirlinesUA2275
LufthansaLH7487
AviancaAV2029
Copa AirlinesCM2765
21:40
AirlineFlight  No
Air Tahiti NuiTN2611
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
American AirlinesAA9375
Japan AirlinesJL5440
Qatar AirwaysQR2112
Qatar AirwaysQR8844
22:30
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
VIEW FLIGHTS
Saturday
05:34
AirlineFlight  No
Air Tahiti NuiTN2611
Alaska AirlinesAS348
Hawaiian AirlinesHA6717
American AirlinesAA9375
Qatar AirwaysQR8844
08:15
AirlineFlight  No
United AirlinesUA2398
Austrian AirlinesOS7908
Ethiopian AirlinesET1369
LufthansaLH7485
Brussels AirlinesSN8850
11:30
AirlineFlight  No
Air Tahiti NuiTN2465
Singapore AirlinesSQ1234
Alaska AirlinesAS406
Hawaiian AirlinesHA6724
American AirlinesAA9349
Japan AirlinesJL5440
Qatar AirwaysQR2990
12:46
AirlineFlight  No
United AirlinesUA2275
LufthansaLH7487
AviancaAV2029
22:30
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
Delta Air LinesDL541
VIEW FLIGHTS
Sunday
08:15
AirlineFlight  No
United AirlinesUA2398
10:00
AirlineFlight  No
Alaska AirlinesAS406
12:46
AirlineFlight  No
United AirlinesUA2275
21:40
AirlineFlight  No
Alaska AirlinesAS348
22:30
AirlineFlight  No
Korean AirKE3019
China Eastern AirlinesMU8804
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

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 £104.03 ($138 €121.35)
£104.03
$138 | €121.35
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 £203.54 ($270 €237.42)
£203.54
$270 | €237.42
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, Japan Airlines, 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

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...