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Ronald Reagan Washington National Airport to Seattle-Tacoma International Airport flight

Search for flights from Washington D.C. to Seattle and check out affordable one-way and round-trip options.

      • Cheapest nonstop
        DCA 16:39
        5h 51m
        Direct
        SEA 19:30
        Washington D.C. - Seattle | Sat, May 9 | Delta Air Lines
        SEA 07:30
        4h 57m
        Direct
        DCA 15:27
        Seattle - Washington D.C. | Fri, May 15 | Delta Air Lines
        MYR 709 MYR 936
        24% off
        24% off
        MYR 936 MYR 709
      • DCA 16:39
        5h 51m
        Direct
        SEA 19:30
        Washington D.C. - Seattle | Wed, May 20 | Delta Air Lines
        SEA 15:59
        4h 56m
        Direct
        IAD 23:55
        Seattle - Washington D.C. | Fri, May 22 | Delta Air Lines
        MYR 759 MYR 936
        19% off
        19% off
        MYR 936 MYR 759
      • DCA 17:28
        8h 20m
        1 stop
        SEA 22:48
        Washington D.C. - Seattle | Sat, May 30 | Delta Air Lines
        SEA 07:20
        5h 10m
        Direct
        DCA 15:30
        Seattle - Washington D.C. | Wed, Jun 3 | Delta Air Lines
        MYR 669 MYR 936
        28% off
        28% off
        MYR 936 MYR 669
      • DCA 18:00
        18h 27m
        1 stop
        SEA 09:27
        Washington D.C. - Seattle | Wed, May 13 | Frontier Airlines
        SEA 19:12
        14h 47m
        1 stop
        DCA 12:59
        Seattle - Washington D.C. | Sun, May 17 | Frontier Airlines
        MYR 689
        26% off
        MYR 936 MYR 689
      • DCA 08:00
        10h 5m
        1 stop
        SEA 15:05
        Washington D.C. - Seattle | Tue, May 12 | Frontier Airlines
        SEA 15:55
        5h 14m
        Direct
        IAD 00:09
        Seattle - Washington D.C. | Sun, May 17 | Alaska Airlines
        MYR 782
        16% off
        MYR 936 MYR 782
      • DCA 06:00
        7h 32m
        1 stop
        SEA 10:32
        Washington D.C. - Seattle | Sun, May 17 | Delta Air Lines
        SEA 15:59
        4h 56m
        Direct
        IAD 23:55
        Seattle - Washington D.C. | Sat, May 23 | Delta Air Lines
        MYR 785
        16% off
        MYR 936 MYR 785
      • DCA 07:00
        29h 49m
        1 stop
        SEA 09:49
        Washington D.C. - Seattle | Thu, May 28 | Frontier Airlines
        SEA 07:10
        8h 55m
        1 stop
        DCA 19:05
        Seattle - Washington D.C. | Wed, Jun 3 | American Airlines
        MYR 824
        12% off
        MYR 936 MYR 824
      • DCA 07:59
        10h 6m
        1 stop
        SEA 15:05
        Washington D.C. - Seattle | Tue, May 19 | Frontier Airlines
        SEA 19:12
        14h 47m
        1 stop
        DCA 12:59
        Seattle - Washington D.C. | Thu, May 21 | Frontier Airlines
        MYR 849
        9% off
        MYR 936 MYR 849
      • DCA 18:00
        18h 49m
        1 stop
        SEA 09:49
        Washington D.C. - Seattle | Wed, May 27 | Frontier Airlines
        SEA 18:52
        15h 7m
        1 stop
        DCA 12:59
        Seattle - Washington D.C. | Wed, Jun 3 | Frontier Airlines
        MYR 860
        8% off
        MYR 936 MYR 860
      • DCA 17:30
        10h 6m
        1 stop
        SEA 00:36
        Washington D.C. - Seattle | Wed, May 20 | American Airlines
        SEA 23:55
        8h 8m
        1 stop
        DCA 11:03
        Seattle - Washington D.C. | Fri, May 22 | American Airlines
        MYR 861
        8% off
        MYR 936 MYR 861
      • WAS 13:00
        17h 25m
        1 stop
        SEA 14:00
        Washington D.C. - Seattle | Sun, May 10 | Normal Airline
        SEA 15:00
        6h
        Direct
        WAS 16:00
        Seattle - Washington D.C. | Tue, May 12 | Normal Airline
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      • Cheapest nonstop
        DCA 16:39
        5h 51m
        Direct
        SEA 19:30
        Washington D.C. - Seattle | Fri, May 15 | Delta Air Lines
        MYR 595 MYR 673
        12% off
        12% off
        MYR 673 MYR 595
      • DCA 16:36
        5h 54m
        Direct
        SEA 19:30
        Washington D.C. - Seattle | Fri, Jun 26 | Delta Air Lines
        MYR 619 MYR 673
        8% off
        8% off
        MYR 673 MYR 619
      • DCA 18:00
        18h 27m
        1 stop
        SEA 09:27
        Washington D.C. - Seattle | Wed, May 13 | Frontier Airlines
        MYR 344 MYR 673
        49% off
        49% off
        MYR 673 MYR 344
      • DCA 13:59
        22h 28m
        1 stop
        SEA 09:27
        Washington D.C. - Seattle | Fri, May 15 | Frontier Airlines
        MYR 365
        46% off
        MYR 673 MYR 365
      • DCA 15:15
        10h 23m
        1 stop
        SEA 22:38
        Washington D.C. - Seattle | Sun, May 24 | American Airlines
        MYR 386
        43% off
        MYR 673 MYR 386
      • DCA 07:59
        28h 28m
        1 stop
        SEA 09:27
        Washington D.C. - Seattle | Sat, May 16 | Frontier Airlines
        MYR 412
        39% off
        MYR 673 MYR 412
      • DCA 15:35
        11h 30m
        1 stop
        SEA 00:05
        Washington D.C. - Seattle | Fri, May 15 | Hahn Air
        MYR 415
        38% off
        MYR 673 MYR 415
      • DCA 07:59
        28h 50m
        1 stop
        SEA 09:49
        Washington D.C. - Seattle | Fri, May 22 | Frontier Airlines
        MYR 416
        38% off
        MYR 673 MYR 416
      • DCA 07:00
        29h 49m
        1 stop
        SEA 09:49
        Washington D.C. - Seattle | Wed, May 27 | Frontier Airlines
        MYR 417
        38% off
        MYR 673 MYR 417
      • DCA 16:50
        10h 5m
        1 stop
        SEA 23:55
        Washington D.C. - Seattle | Sun, May 24 | Hahn Air
        MYR 438
        35% off
        MYR 673 MYR 438
      • DCA 07:00
        29h 49m
        1 stop
        SEA 09:49
        Washington D.C. - Seattle | Sat, May 23 | Frontier Airlines
        MYR 454
        33% off
        MYR 673 MYR 454
      • WAS 13:00
        17h 25m
        1 stop
        SEA 14:00
        Washington D.C. - Seattle | Sun, May 10 | Normal Airline
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Displayed flight fares from Washington D.C. to Seattle are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Trip.com Price Insights: Flights from Ronald Reagan Washington National Airport to Seattle-Tacoma International Airport

What is the cheapest month to fly from Ronald Reagan Washington National Airport to Seattle-Tacoma International Airport?

The data is based on the past 12 months and shows the average one-way ticket prices from Ronald Reagan Washington National Airport to Seattle-Tacoma International Airport for each month in the Trip.com database.

Based on Trip.com's data from the past 12 months, the cheapest one-way flights from Ronald Reagan Washington National Airport to Seattle-Tacoma International Airport are usually in February, with an average price of MYR 261. It is best to avoid November, when the average price can reach MYR 1,642.

MYR 1,642
MYR 952
MYR 261
0
  • MYR 261
    Feb
  • MYR 1,110
    Mar
  • MYR 1,037
    Apr
  • MYR 1,287
    May
  • MYR 1,065
    Jun
  • MYR 1,255
    Jul
  • MYR 1,499
    Aug
  • MYR 1,243
    Sep
  • MYR 1,175
    Oct
  • MYR 1,642
    Nov
  • MYR 984
    Dec
  • MYR 548
    Jan

What is the cheapest day of the week to fly from Ronald Reagan Washington National Airport to Seattle-Tacoma International Airport?

The data is based on the past 12 months and shows the average ticket prices from Ronald Reagan Washington National Airport to Seattle-Tacoma International Airport for each day of the week in the Trip.com database.

Based on Trip.com's data from the past 12 months, the cheapest departure day from Ronald Reagan Washington National Airport to Seattle-Tacoma International Airport is Saturday, with average prices usually lower than other days. Avoid departing on Sunday as prices are typically highest on that day.

MYR 1,545
MYR 1,211
MYR 876
MYR 542
    Cheapest
  • MYR 924
    Mon
  • MYR 1,464
    Tue
  • MYR 1,196
    Wed
  • MYR 1,340
    Thu
  • MYR 1,383
    Fri
  • MYR 876
    Sat
  • MYR 1,545
    Sun

Selected Airlines from Ronald Reagan Washington National Airport to Seattle-Tacoma International Airport

See which airlines fly from Washington D.C. to Seattle. Find the airline that best meets your travel needs by comparing prices and treat yourself to an enjoyable journey.

Frontier Airlines
From MYR 344
American Airlines
From MYR 386
Hahn Air
From MYR 415
Alaska Airlines
From MYR 510
Delta Air Lines
From MYR 548
United Airlines
From MYR 658
Jetblue Airways
From MYR 922
Hawaiian Airlines
From MYR 1,106
Qatar Airways
From MYR 1,116

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Flight Schedule from Ronald Reagan Washington National Airport to Seattle-Tacoma International Airport

Check the schedule for flights from Washington D.C. to Seattle and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. AS001

    Ronald Reagan Washington National Airport

    08:00

    DCA

    5h 58m

    10:58

    SEA

    S M T W T F S
    Search

  2. DL786

    Ronald Reagan Washington National Airport

    16:40

    DCA

    6h 5m

    19:45

    SEA

    S M T W T F S
    Search

  3. DL2963

    Ronald Reagan Washington National Airport

    18:50

    DCA

    2h 51m

    Direct

    20:41

    MSP

    S M T W T F S
    Search

  4. DL505

    Minneapolis-Saint Paul International Airport

    22:08

    MSP

    3h 50m

    Direct

    23:58

    SEA

    S M T W T - S

  5. AS015

    Ronald Reagan Washington National Airport

    08:59

    DCA

    5h 42m

    Direct

    11:41

    SAN

    S M T W T F S
    Search

  6. AS685

    San Diego International Airport

    12:28

    SAN

    3h 12m

    Direct

    15:40

    SEA

    S M T W T F S

  7. AA5601

    Ronald Reagan Washington National Airport

    13:44

    DCA

    1h 9m

    Direct

    14:53

    PHL

    S M T W T F S
    Search

  8. AA2763

    Philadelphia International Airport

    18:08

    PHL

    6h 15m

    Direct

    21:23

    SEA

    S M T W T F S

  9. AS005

    Ronald Reagan Washington National Airport

    09:30

    DCA

    5h 39m

    Direct

    12:09

    LAX

    S M T W T F S
    Search

  10. AS698

    Los Angeles International Airport

    15:59

    LAX

    2h 57m

    Direct

    18:56

    SEA

    S M T W T F S

  11. F9689

    Ronald Reagan Washington National Airport

    18:00

    DCA

    4h 3m

    Direct

    20:03

    DEN

    S M - W T F S
    Search

  12. F94545

    Denver International Airport

    07:45

    DEN

    3h 6m

    Direct

    09:51

    SEA

    S M T W T F S

  13. F9687

    Ronald Reagan Washington National Airport

    14:00

    DCA

    4h 3m

    Direct

    16:03

    DEN

    S - T W T F S
    Search

  14. F94545

    Denver International Airport

    07:45

    DEN

    3h 6m

    Direct

    09:51

    SEA

    S M T W T F S

  15. F9685

    Ronald Reagan Washington National Airport

    07:00

    DCA

    4h 4m

    Direct

    09:04

    DEN

    S M T W T F S
    Search

  16. F94545

    Denver International Airport

    07:45

    DEN

    3h 6m

    Direct

    09:51

    SEA

    S M T W T F S
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Ronald Reagan Washington National Airport to Seattle-Tacoma International Airport Flights Info

Flight distance3,741.3km
Cheapest one-way ticket priceMYR 344
Cheapest return ticket priceMYR 669

FAQs for Ronald Reagan Washington National Airport to Seattle-Tacoma International Airport Flights

  • How long does it take to fly from Ronald Reagan Washington National Airport (DCA) to Seattle-Tacoma International Airport (SEA)?

    It takes around 5 hours 56 minutes to fly from Ronald Reagan Washington National Airport (dca) to Seattle-Tacoma International Airport(sea).
  • There are around 2 daily flights from Ronald Reagan Washington National Airport (DCA) to Seattle-Tacoma International Airport (SEA).
  • Tickets cost around MYR 1,645 in June, making it the cheapest month to book. Ronald Reagan Washington National Airport (DCA) to Seattle-Tacoma International Airport (SEA) is a popular route, so don't forget to book your tickets in advance.
  • The route from Ronald Reagan Washington National Airport (DCA) to Seattle-Tacoma International Airport (SEA) is quite popular. Without considering departure times or holidays, tickets cost around MYR 2,446 in July, the most expensive month to book this route.
    • The distance from Seattle-Tacoma International Airport to downtown is about 17km, by taxi about 30 minutes.
  • Delta Air Lines is a very popular airline operating an average of 755 flights per month.

Find Cheap Flights with Trip.com

Note: Prices shown on this page are the estimated lowest prices and include all taxes and fees found in the last 24 hours.

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Prices displayed on this page are all-inclusive (including taxes, fuel surcharges, civil aviation development fund, etc.), with all fees confirmed before payment. Fees for luggage, meals, Wi-Fi, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours—sometimes even in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the cancellation and change policies for each flight ticket during the booking process, including any fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply according to the airline's ticket policy.
Cancellation/change due to a flight schedule change:
If the flight schedule has changed and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please visit the customer support pages.