Cheap Flights from Washington D.C., DC to Seattle, WA from $286

Return flight: Seattle – Washington D.C.
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On Cheapflightsplus.com you will find 2 direct flights from Washington D.C. to Seattle. You can compare airfare deals from 1 airlines and multiple travel sites from $286, book and save on cheap plane tickets and last minute offers. Also check out WAS-SEA flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Washington D.C. to Seattle Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $286 (one-way), $490 (round-trip).
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Best Flights from Washington D.C. to Seattle Today

Take a look at the list of non stop flights and flights with layovers from Washington D.C. to Seattle with the lowest price of $286. Take a look at the list of non stop flights from Washington D.C. to Seattle from $286. The fastest direct flight takes 5h 55m. There’re no connecting flights.
Price Departure Arrival Flight Duration Airline Flight
from $286
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17:39
Washington D.C.
Ronald Reagan
 20:34
Seattle
Seattle-Tacoma Intl
 5h 55m Alaska Airlines
AS3
from $286
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08:00
Washington D.C.
Ronald Reagan
 10:58
Seattle
Seattle-Tacoma Intl
 5h 58m Alaska Airlines
AS1
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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on April 30, 2025
Full flight schedule will help you in detecting at what time planes fly from Washington D.C. to Seattle. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
08:00 — 10:58
08:00 — 10:58 AS1 Alaska Airlines
Washington D.C. — Seattle
5h 58m
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from$286
17:39 — 20:34
17:39 — 20:34 AS3 Alaska Airlines
Washington D.C. — Seattle
5h 55m
Find flight
from$286
*Departure and arrival times - local. Updated on April 30, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Washington D.C. to Seattle depends on and how to choose the most interesting flight option for you.

Distance between Washington D.C. and Seattle is 3735 miles. Time difference between the cities is 3h. Airplanes depart 08:00 to 17:39 from 2 Washington D.C. airports and arrive 08:00 to 17:39 to 3 Seattle airports. Average flight time is 5h 57m.

  • The fastest flight 5h 55m
  • Average flight time 5h 57m
  • The earliest flight 08:00
  • The latest flight 17:39
  • Distance 2321 ml

The cheapest months to travel to Seattle are may (from 286 $), november (from 372 $).

What is the lowest airfare Washington D.C. to Seattle?

The cheapest plane ticket found by our users is $286. This airfare is for economy class on one-way AS1 flight by Alaska Airlines for May 3, 2025 which leaves Ronald Reagan in Washington D.C. at 08:00 am and arrives at Seattle Seattle-Tacoma Intl at 10:58.

Economy class
$286
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Business class
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First class
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Popular Airlines on the Route

The flight Washington D.C. — Seattle is served by 1 regular airline . Most of the flights on this route are operated by Alaska Airlines - 2 departures per week at the price of from $ 286 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 286.

Direct flights

There are 2 nonstop flights on the route. The fastest direct flight is AS3 by Alaska Airlines takes 5h 55m and the cheapest is AS1 by Alaska Airlines for $286.

  • AS - Alaska Airlines
    from $286
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Connecting Flights

There’re no flights with layovers. Try direct flights or departure from nearby cities.

Airports

You can fly from Washington D.C. to Seattle from 2 airports (Dulles International, Ronald Reagan).

Washington D.C. airports

  • Dulles International-IAD
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  • Ronald Reagan-DCA
    from $286
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Seattle airports

  • Boeing Field International Airport-BFI
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  • Seattle-Tacoma Intl-SEA
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  • Kenmore Air Harbor SPB-LKE
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Airplanes

There are flights to Seattle from Washington D.C. by 1 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from Washington D.C.

You may also consider searching for discounted plane tickets to some other popular places from Washington D.C. within United States.

Top International Destinations from Washington D.C.

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
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  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

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