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

Q: How long does the flight from Seattle to Washington to take?

The flight from Seattle to Washington takes5 Hours 10 Minutes.

We've found the cheapest flights to Washington

Returns from £251.08

One-way from £140.48

Airliners including Korean Air, Ethiopian Airlines, Delta Air Lines, Copa Airlines, China Eastern Airlines, Brussels Airlines, Avianca, Austrian Airlines, Starlux, Qatar Airways, Lufthansa, Jet Linx Aviation, All Nippon Airways, United Airlines, 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.

Travellers planning to fly from Seattle-Tacoma International Airport to Washington Dulles International Airport can pre-book short or long term car parking at Seattle-Tacoma International Airport.

If you chose to rent a car at Washington Dulles International Airport and need to return it, find the nearest fuel station along your route to Washington Dulles International Airport in order to avoid incurring additional cost when you return your vehicle.

Below are some options if you require transport to Seattle-Tacoma International Airport:

Ensure your arrival at Washington Dulles International Airport is as smooth as possible by pre-booking your transport - which in many cases will also save you money:

Need a place to stay when you get to Washington? See a range of hotels near Washington Dulles International Airport

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

Airliner	Mo	Tu	First Flight	Last Flight	Flights
Alaska Airlines	3	2	00:09	21:41	VIEW FLIGHTS
United Airlines	3	1	06:50	13:07	VIEW FLIGHTS
American Airlines	2	2	00:09	05:50	VIEW FLIGHTS
Starlux	1	1	05:50	05:50	VIEW FLIGHTS
Qatar Airways	1	1	05:50	05:50	VIEW FLIGHTS
Lufthansa	2	0	08:10	13:07	VIEW FLIGHTS
Jet Linx Aviation	1	1	05:50	05:50	VIEW FLIGHTS
All Nippon Airways	1	1	06:50	06:50	VIEW FLIGHTS
Korean Air	1	0	23:55	23:55	VIEW FLIGHTS
Ethiopian Airlines	1	0	08:10	08:10	VIEW FLIGHTS
Delta Air Lines	1	0	15:59	15:59	VIEW FLIGHTS
Copa Airlines	1	0	13:07	13:07	VIEW FLIGHTS
China Eastern Airlines	1	0	23:55	23:55	VIEW FLIGHTS
Brussels Airlines	1	0	08:10	08:10	VIEW FLIGHTS
Avianca	1	0	13:07	13:07	VIEW FLIGHTS
Austrian Airlines	1	0	08:10	08:10	VIEW FLIGHTS

Alaska Airlines is the most popular airliners who operate this route. They have around 5 a week with times that vary between 00:09 and 21:41.

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

Day

Flight Times

Flights

Monday