The prices shown on this page were available within the last 20 days for the specified periods and should not be considered the final price offered. Please note that availability and prices are subject to change.

Cheapest time to fly from Washington to Seattle

If you’re planning to fly this route soon, keep in mind that the lowest fares are usually available at the end of November. Take advantage of this period to save on your flight tickets and make the most of your trip. Please note that prices may change after your search.

Filter by

week: 30 Nov - 6 Dec

Flights from just £107

£123

£146

£126

£107

£126

£395

£207

NovemberDecember

Flight Duration5 h and 49 mFlights between Washington and Seattle take, on average, 5 h and 49 m minutes, but the time can vary according to other factors

Cheapest flight£108Cheapest price for a flight between Washington and Seattle found by our customers in the last 72 hours

Origin airportsWashington Dulles International AirportFor flights from Washington to Seattle

Destination airportSeattle-Tacoma International AirportFor the route from Washington to Seattle

High seasonMarchAccording to search data from our customers, March is the busiest time to fly from Washington to Seattle

Airlines flying this routeAlaska AirlinesAirline(s) with flights between Washington to Seattle

One-way average Price£180The average price for a flight Washington - Seattle at Opodo is £180, based on the price of last 6 months

Best time to bookAprilAccording to real data March is the most popular time to book a flight to Seattle when departing from Washington

Distance: 2,322 mi

Washington airports

Washington Dulles International Airport (IAD)How far from city centre: 23 mi

Seattle airports

Seattle-Tacoma International Airport (SEA)How far from city centre: 11 mi

Book your Washington to Seattle flight

Search direct and connecting flights from Washington to Seattle (United States) with Opodo. When your results appear, sort them by timing or fare and book whichever option fits your plans best.

The cheapest fare booked on this route in recent days was £108, although the price you're shown will vary with your travel dates and departure times.

Flying non-stop from Washington to Seattle takes roughly 7 h and 27 m, whereas journeys with a layover will take longer.

Airports and airlines on the Washington–Seattle route

Plan your trip with confidence by checking the relevant airports and comparing the airlines that fly this route.

Departure airport: Washington Dulles International Airport (IAD)
Arrival airport: Seattle-Tacoma International Airport (SEA)

The weather in Seattle

The best time to go may come down to the kind of weather you most enjoy. In Seattle, temperatures average around 23ºC in the warmest months and roughly 2ºC in the coldest. Bear this in mind when deciding what to pack and planning time outdoors.

Highs: up to 25ºC
Lows: down to 2ºC
Hottest month: August
Coldest month: December
Driest month: July
Wettest month: November

Tips for cheaper flights from Washington to Seattle

A few ways to bring down the cost of your flight from Washington to Seattle:

Flexible dates: check fares across two or three departure days. Going a day earlier or later can make a real difference to what you pay.
Baggage allowance: see what's included in each fare before booking, so you're not stung by unexpected charges at the airport.
Airports on your route: double-check which airports you'll fly from and into, particularly if the city has more than one. It makes it easier to plan transfers and work out the full cost of getting around.

After a bigger saving? Book a Flight + Hotel package to combine the two in a single booking and unlock exclusive discounts on your stay in Seattle. Adding car hire to the same booking can save you money too.

Frequently asked questions about flights from Washington to Seattle

On average, how much is the price of a flight from Washington to Seattle?

When you fly from Washington to Seattle the average price is £180. However, this price depends on many other factors such as seasonality or how far in advance the route has been booked.

How can I find cheap flights from Washington to Seattle at Opodo?

The cheapest price for a flight from Washington to Seattle is 108 £. At Opodo we use different machine learned based methodologies to find our costumers the best option available, considering airline combinations, stopovers and direct flights as well as different criteria for inbound and outbound journeys.

When is the best time to book a flight from Washington to Seattle?

The most popular months to book a flight from Washington to Seattle are February, June and September, based on the searches of our customers.

When is the best time to travel from Washington to Seattle?

The best time of the year to go to Seattle when flying from Washington depends on several preference factors like climate, seasonality and, of course, price. When it comes to popularity, March is the top 1º month to fly to Seattle from Washington in terms of searches from our customer, followed by February and June. If you prefer to avoid high peaks of turism, however, and escape a crowded period, January, September and November are the months with less volume of searchs for the route Washington - Seattle.

How long does the flight take to go from Washington to Seattle?

The total flight time between Washington and Seattle is of around 5 h and 49 m on average, considering an average distance of 2,321.99 mi, for both direct and indirect flights for the route (which may have 1 or more stops in other cities in between).

Which airports have flights between Washington and Seattle?

The main airport route flying between Washington and Seattle is: Washington Dulles International Airport (IAD) to Seattle-Tacoma International Airport(SEA). This route is covered by the following airline(s):

Which are the airlines with flights from Washington to Seattle?

Airlines with direct flights departing from Washington to Seattle are:

Alaska Airlines.
American Airlines.

American Airlines

Frontier Airlines
SUN COUNTRY

Plan your trip

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