Cheap Flights from Washington D.C., DC to Seattle, WA from $101
On Cheapflightsplus.com you will find 24 direct and 229 connecting flights from Washington D.C. to Seattle. You can compare airfare deals from 8 airlines and multiple travel sites from $101, 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.
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 06:00 to 23:15 from 2 Washington D.C. airports and arrive 06:00 to 23:15 to 3 Seattle airports. Average flight time is 5h 47m.
- The fastest flight 5h 38m
- Average flight time 5h 47m
- The earliest flight 06:00
- The latest flight 23:15
- Distance 2321 ml
Best Flights from Washington D.C. to Seattle Today
| Price | Departure | Arrival | Flight Duration | Airline | Flight |
|---|---|---|---|---|---|
| from $129 | 07:00 Washington D.C. Dulles International | 09:38 Seattle Seattle-Tacoma Intl | 5h 38m | Hawaiian Airlines | HA4967 |
| from $133 | 07:00 Washington D.C. Dulles International | 09:38 Seattle Seattle-Tacoma Intl | 5h 38m | Alaska Airlines | AS351 |
| from $149 | 09:00 Washington D.C. Dulles International | 11:38 Seattle Seattle-Tacoma Intl | 5h 38m | Hawaiian Airlines | HA4968 |
| from $101 | 07:40 Washington D.C. Dulles International | 14:11 Seattle Seattle-Tacoma Intl | 9h 31m layover 1h 34m - Las Vegas | Frontier Airlines | F94277 F92407 |
| from $119 | 13:00 Washington D.C. Ronald Reagan | 00:34+1 день Seattle Seattle-Tacoma Intl | 14h 34m layover 7h 19m - Denver | Frontier Airlines | F9687 F93405 |
The cheapest months to travel to Seattle are june (from 101 $), july (from 113 $), august (from 118 $).
The most expensive months are december (from 275 $), january (from 212 $), february (from 177 $).
What is the lowest airfare Washington D.C. to Seattle?
The cheapest plane ticket found by our users is $101. This airfare is for economy class on one-way F9689 flight by Frontier Airlines for June 22, 2025 which leaves Ronald Reagan in Washington D.C. at 18:00 am and arrives at Seattle Seattle-Tacoma Intl at 00:34.
Flight Schedule Washington D.C. (District of Columbia) to Seattle (Washington)
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Popular Airlines on the Route
The flight Washington D.C. — Seattle is served by 8 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 36 departures per week at the price of from $ 133 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 5239.
Direct flights
There are 24 nonstop flights on the route. The fastest direct flight is HA4967 by Hawaiian Airlines takes 5h 38m and the cheapest is F9689 by Frontier Airlines for $129.
- AS - Alaska Airlinesfrom $133Find
- HA - Hawaiian Airlinesfrom $129Find
- UA - United Airlinesfrom $183Find
Connecting Flights
There are 229 flights with layovers on the route. The fastest connecting flight is SY224 by Sun Country Airlines takes 7h 22m and the cheapest is F9689 by Frontier Airlines for $101.
- AS - Alaska Airlinesfrom $142Find
- F9 - Frontier Airlinesfrom $101Find
- FI - Icelandairfrom $862Find
- SY - Sun Country Airlinesfrom $171Find
- TK - Turkish Airlinesfrom $2543Find
- HA - Hawaiian Airlinesfrom $134Find
- UA - United Airlinesfrom $192Find
- G4 - Allegiant Airfrom $183Find
Airports
You can fly from Washington D.C. to Seattle from 2 airports (Dulles International, Ronald Reagan).
Washington D.C. airports
- Dulles International-IADfrom $101Find
- Ronald Reagan-DCAfrom $101Find
Seattle airports
- Boeing Field International Airport-BFIFind
- Seattle-Tacoma Intl-SEAFind
- Kenmore Air Harbor SPB-LKEFind
Airplanes
There are flights to Seattle from Washington D.C. by 8 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.
Top Domestic Destinations from Washington D.C.
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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.
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How to book a plane ticket yourself?
- Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
- Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
- 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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