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Cheap flight deals from Washington D.C. to Seattle Starting at PHP 2,864

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • One way
  • Round-trip
      • Cheapest nonstop
        IAD06:22 pm
        5h 59m
        Nonstop
        SEA09:21 pm
        Fri, Apr 4|Washington D.C. - Seattle|Hawaiian Airlines
        PHP 7,363PHP 9,762
        25% OFF
        25% OFF
        PHP 9,762PHP 7,363

        Choose Hawaiian Airlines flights from Washington D.C. to Seattle. The one-way direct flight with Hawaiian Airlines departs from Washington Dulles International Airport on Fri, Apr 4, arriving at Seattle-Tacoma International Airport. One-way Prices start from PHP 7,363 including taxes and charges.

      • DCA05:25 pm
        6h 10m
        Nonstop
        SEA08:35 pm
        Sat, Mar 15|Washington D.C. - Seattle|Alaska Airlines
        PHP 7,419PHP 9,762
        24% OFF
        24% OFF
        PHP 9,762PHP 7,419

        Choose Alaska Airlines flights from Washington D.C. to Seattle. The one-way direct flight with Alaska Airlines departs from Ronald Reagan Washington National Airport on Sat, Mar 15, arriving at Seattle-Tacoma International Airport. One-way Prices start from PHP 7,419 including taxes and charges.

      • DCA01:03 pm
        26h 33m
        1 stop
        SEA12:36 pm
        Tue, Feb 25|Washington D.C. - Seattle|Frontier Airlines
        PHP 2,864PHP 9,762
        71% OFF
        71% OFF
        PHP 9,762PHP 2,864

        Choose Frontier Airlines flights from Washington D.C. to Seattle. The one-way connecting flight with Frontier Airlines departs from Ronald Reagan Washington National Airport on Tue, Feb 25, arriving at Seattle-Tacoma International Airport. One-way Prices start from PHP 2,864 including taxes and charges.

      • DCA07:00 am
        8h 36m
        1 stop
        SEA12:36 pm
        Mon, Mar 3|Washington D.C. - Seattle|Frontier Airlines
        PHP 3,789
        PHP 3,789

        Choose Frontier Airlines flights from Washington D.C. to Seattle. The one-way connecting flight with Frontier Airlines departs from Ronald Reagan Washington National Airport on Mon, Mar 3, arriving at Seattle-Tacoma International Airport. One-way Prices start from PHP 3,789 including taxes and charges.

      • DCA06:00 pm
        9h 44m
        1 stop
        SEA12:44 am
        Tue, May 6|Washington D.C. - Seattle|Frontier Airlines
        PHP 3,813
        PHP 3,813

        Choose Frontier Airlines flights from Washington D.C. to Seattle. The one-way connecting flight with Frontier Airlines departs from Ronald Reagan Washington National Airport on Tue, May 6, arriving at Seattle-Tacoma International Airport. One-way Prices start from PHP 3,813 including taxes and charges.

      • DCA07:00 am
        8h 46m
        1 stop
        SEA12:46 pm
        Sat, Mar 1|Washington D.C. - Seattle|Frontier Airlines
        PHP 3,893
        PHP 3,893

        Choose Frontier Airlines flights from Washington D.C. to Seattle. The one-way connecting flight with Frontier Airlines departs from Ronald Reagan Washington National Airport on Sat, Mar 1, arriving at Seattle-Tacoma International Airport. One-way Prices start from PHP 3,893 including taxes and charges.

      • DCA06:00 pm
        9h 44m
        1 stop
        SEA12:44 am
        Tue, Apr 22|Washington D.C. - Seattle|Frontier Airlines
        PHP 3,893
        PHP 3,893

        Choose Frontier Airlines flights from Washington D.C. to Seattle. The one-way connecting flight with Frontier Airlines departs from Ronald Reagan Washington National Airport on Tue, Apr 22, arriving at Seattle-Tacoma International Airport. One-way Prices start from PHP 3,893 including taxes and charges.

      • DCA07:00 am
        8h 2m
        1 stop
        SEA12:02 pm
        Mon, Mar 10|Washington D.C. - Seattle|Frontier Airlines
        PHP 3,901
        PHP 3,901

        Choose Frontier Airlines flights from Washington D.C. to Seattle. The one-way connecting flight with Frontier Airlines departs from Ronald Reagan Washington National Airport on Mon, Mar 10, arriving at Seattle-Tacoma International Airport. One-way Prices start from PHP 3,901 including taxes and charges.

      • DCA07:00 am
        8h 36m
        1 stop
        SEA12:36 pm
        Wed, Mar 5|Washington D.C. - Seattle|Frontier Airlines
        PHP 3,957
        PHP 3,957

        Choose Frontier Airlines flights from Washington D.C. to Seattle. The one-way connecting flight with Frontier Airlines departs from Ronald Reagan Washington National Airport on Wed, Mar 5, arriving at Seattle-Tacoma International Airport. One-way Prices start from PHP 3,957 including taxes and charges.

      • DCA01:03 pm
        25h 59m
        1 stop
        SEA12:02 pm
        Wed, Feb 26|Washington D.C. - Seattle|Frontier Airlines
        PHP 4,021
        PHP 4,021

        Choose Frontier Airlines flights from Washington D.C. to Seattle. The one-way connecting flight with Frontier Airlines departs from Ronald Reagan Washington National Airport on Wed, Feb 26, arriving at Seattle-Tacoma International Airport. One-way Prices start from PHP 4,021 including taxes and charges.

      • WAS01:00 pm
        3h 5m
        Nonstop
        SEA02:00 pm
        Wed, Feb 26|Washington D.C. - Seattle|Hawaiian Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Washington D.C. to Seattle Flight Time

Flight info.
Departure
Arrival
Weekly Schedule

  1. F9687

    Frontier Airlines

    01:00 pm

    DCA

    4.0h

    02:57 pm

    DEN

    SMTWTFS
    Search

  2. F93405

    Frontier Airlines

    10:36 pm

    DEN

    3.1h

    12:44 am

    SEA

    --T-TF-

  3. B62664

    Jetblue Airways

    03:50 pm

    DCA

    1.6h

    05:25 pm

    BOS

    -MT----
    Search

  4. B6497

    Jetblue Airways

    07:44 pm

    BOS

    6.3h

    11:05 pm

    SEA

    SMTWTFS

  5. DL508

    Delta Air Lines

    04:23 pm

    IAD

    6.0h

    Nonstop

    07:24 pm

    SEA

    SMTWTFS
    Search

  6. AS003

    Alaska Airlines

    05:00 pm

    DCA

    5.9h

    Nonstop

    07:56 pm

    SEA

    SMTWTFS
    Search

  7. F9689

    Frontier Airlines

    06:00 pm

    DCA

    4.1h

    08:08 pm

    DEN

    SMTWTFS
    Search

  8. F91175

    Frontier Airlines

    09:25 am

    DEN

    3.1h

    11:31 am

    SEA

    S-TWTFS

  9. AS351

    Alaska Airlines

    06:15 pm

    IAD

    5.8h

    Nonstop

    09:00 pm

    SEA

    SM-WTFS
    Search

  10. AS308

    Alaska Airlines

    06:30 am

    IAD

    5.7h

    Nonstop

    09:10 am

    SEA

    SMTWTFS
    Search

  11. F9685

    Frontier Airlines

    07:00 am

    DCA

    4.0h

    09:02 am

    DEN

    SMTWTFS
    Search

  12. F91261

    Frontier Airlines

    07:58 am

    DEN

    2.5h

    09:31 am

    ONT

    S--WT-S

  13. F91177

    Frontier Airlines

    05:35 pm

    LAX

    3.1h

    08:42 pm

    SEA

    S--WTFS

  14. F9685

    Frontier Airlines

    07:00 am

    DCA

    4.0h

    09:02 am

    DEN

    SMTWTFS
    Search

  15. F91175

    Frontier Airlines

    09:25 am

    DEN

    3.1h

    11:31 am

    SEA

    S-TWTFS

  16. AS001

    Alaska Airlines

    08:00 am

    DCA

    5.7h

    Nonstop

    10:39 am

    SEA

    SMTWTFS
    Search
Find more flights and airlines

When is the cheapest time to fly from Washington D.C. to Seattle?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Top Airlines Flying from Washington D.C. to Seattle

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.
Alaska Airlines logoAlaska Airlines

Frequently Asked Questions

  • When are flight tickets from Washington D.C. (WAS) to Seattle (SEA) the cheapest?

    Airlines adjust prices for flights from Washington D.C. to Seattle based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Washington D.C. (WAS) to Seattle (SEA) cost?

    According to Trip.com's data, the lowest price is around PHP 17,854.

  • How long does it take to fly from Washington D.C. (WAS) to Seattle (SEA) and what is the distance?

    It takes around 5 hours 59 minutes to fly from Washington D.C. (WAS) to Seattle (SEA).

  • What is the transportation method from the main airport to downtown in Seattle?

    • The distance from Seattle-Tacoma International Airport to downtown is about 17 km. It takes about 30 minutes by taxi.

  • What are the most popular airlines that fly from Washington D.C. (WAS) to Seattle (SEA)?

How to find a cheap flight from Washington D.C. to Seattle

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Washington D.C. to Seattle. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Info | Washington D.C. to Seattle

Cheapest nonstop flight pricePHP 2,863
Cheapest round-trip ticket pricePHP 11,503
Off-season for travelFebruary
Peak season for travelNovember
Flight distance3,736.07 km
Average flight time5 hours 59 minutes
Popular airlineAlaska Airlines

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