Flights from Washington Airport (IAD) to Seattle Airport Airport (SEA)

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

The flight from Washington to Seattle takes5 Hours 10 Minutes.

We've found the cheapest flights to Seattle

Returns from £197.83

One-way from £100.50

Multiple companies offer flights from Washington Dulles International to Seattle-Tacoma International. The journey time flying from Washington Dulles International to Seattle-Tacoma International United States is around 5 Hours 10 Minutes. With the distance covered being 3,701 Km (2,300 Miles). The airport code for Washington Dulles International is IAD and for Seattle-Tacoma International it is SEA.

The price of the flight is dependent on the time of the day you fly (if there is a choice) and the day of the week with weekends being normally a higher price. Seattle-Tacoma International United States flights may be normally booked months in advance and this may be the best option if you intend to get the best prices from Washington Dulles International. Our recommendation is to book well in advance if you are looking to get the best possible prices.

There is a time difference of 8.0 GMT at Seattle-Tacoma International United States, so remember to alter your watch to the correct time upon your arrival.

If you are planning a trip to Seattle-Tacoma International Airport from Washington Dulles International Airport you can pre-arrange short or long term parking at Washington Dulles International Airport.

If you rented a vehicle at Seattle-Tacoma International Airport and have to return it with a full tank of fuel, avoid excess fees by refilling at the nearest fuel station to Seattle-Tacoma International Airport.

We suggest pre-booking your transport to Washington Dulles International Airport. The following options are available:

Pre-booking your transportation requirements at Seattle-Tacoma International Airport can save a lot of time, hassle and money when arriving at the airport. Research and book your preferred choice of ground transportation at Seattle-Tacoma International Airport:

Find hotels close to Seattle-Tacoma International Airport many hotels offer airport transfers directly from the airport to your hotel.

The table below displays the numbers of daily flights from Washington Dulles International (IAD) to Seattle-Tacoma International (SEA) and the relevant airlines that fly.

Flights Chart

Airliner	Mo	Tu	We	Th	Fr	Sa	Su	First Flight	Last Flight	Flights
Alaska Airlines	2	2	2	3	3	2	3	10:20	22:00	VIEW FLIGHTS
Delta Air Lines	2	2	2	2	2	2	1	10:20	20:38	VIEW FLIGHTS
Korean Air	2	2	2	2	2	2	0	10:20	20:38	VIEW FLIGHTS
China Eastern Airlines	2	2	2	2	2	2	0	10:20	20:38	VIEW FLIGHTS
Air Tahiti Nui	1	1	1	2	2	2	1	07:40	19:31	VIEW FLIGHTS
United Airlines	1	1	1	1	1	1	1	20:18	20:18	VIEW FLIGHTS
Qatar Airways	1	1	1	1	2	1	0	19:31	22:00	VIEW FLIGHTS
Jet Linx Aviation	1	1	1	1	1	1	1	07:40	07:40	VIEW FLIGHTS
Lufthansa	1	1	1	1	1	1	0	20:18	20:18	VIEW FLIGHTS
KLM	1	1	1	1	1	1	0	10:20	10:20	VIEW FLIGHTS
Japan Airlines	1	1	1	1	1	1	0	10:20	10:25	VIEW FLIGHTS
Ethiopian Airlines	1	1	1	1	1	1	0	20:18	20:18	VIEW FLIGHTS
Copa Airlines	1	1	1	1	1	1	0	20:18	20:18	VIEW FLIGHTS
Brussels Airlines	1	1	1	1	1	1	0	20:18	20:18	VIEW FLIGHTS
Avianca	1	1	1	1	1	1	0	20:18	20:18	VIEW FLIGHTS
Austrian Airlines	1	1	1	1	1	1	0	20:18	20:18	VIEW FLIGHTS
Singapore Airlines	1	0	1	0	1	0	0	22:00	22:00	VIEW FLIGHTS

The greatest amount of direct flights offered from Washington Dulles International to Seattle-Tacoma International United States are by Alaska Airlines with around 17 flights a week. The earliest flight is available at 10:20 and the latest flights at 22:00 with the most popular flight number being AS351, AS406 and AS499.

You can visit Alaska Airlines at alaskaair.com website for late minute deals and up to date information.

Below you can see the times of all flights. These flight times do vary so we recommend you look on the appropriate airline website for accurate information for the dates you are departing.

Flights Time In WeekDays

Day

Flight Times

Flights

Monday