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

Explore the cheapest one-way and round-trip flights from Seattle-Tacoma International Airport to Ronald Reagan Washington National Airport over the next 90 days, with one-way fares from MXN$2,043 and round-trip from MXN$3,073. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        SEA 07:20
        5h 3m
        Direct
        DCA 15:23
        Seattle - Washington D.C. | Mon, Nov 16 | Delta Air Lines
        DCA 16:25
        6h 2m
        Direct
        SEA 19:27
        Washington D.C. - Seattle | Thu, Nov 19 | Delta Air Lines
        MXN$3,073 MXN$5,757
        47% off
        47% off
        MXN$5,757 MXN$3,073
      • SEA 13:49
        5h 10m
        Direct
        DCA 21:59
        Seattle - Washington D.C. | Tue, Oct 27 | Alaska Airlines
        IAD 07:02
        5h 42m
        Direct
        SEA 09:44
        Washington D.C. - Seattle | Mon, Nov 2 | Alaska Airlines
        MXN$3,170 MXN$5,757
        45% off
        45% off
        MXN$5,757 MXN$3,170
      • SEA 07:20
        5h 3m
        Direct
        DCA 15:23
        Seattle - Washington D.C. | Mon, Oct 26 | Delta Air Lines
        IAD 07:05
        5h 51m
        Direct
        SEA 09:56
        Washington D.C. - Seattle | Thu, Oct 29 | Delta Air Lines
        MXN$3,722 MXN$5,757
        35% off
        35% off
        MXN$5,757 MXN$3,722
      • SEA 13:49
        5h 10m
        Direct
        DCA 21:59
        Seattle - Washington D.C. | Mon, Oct 26 | Alaska Airlines
        IAD 07:02
        5h 42m
        Direct
        SEA 09:44
        Washington D.C. - Seattle | Thu, Oct 29 | Alaska Airlines
        MXN$4,143
        28% off
        MXN$5,757 MXN$4,143
      • SEA 07:20
        5h 12m
        Direct
        DCA 15:32
        Seattle - Washington D.C. | Sun, Oct 11 | Delta Air Lines
        DCA 16:45
        5h 50m
        Direct
        SEA 19:35
        Washington D.C. - Seattle | Sat, Oct 17 | Delta Air Lines
        MXN$4,162
        28% off
        MXN$5,757 MXN$4,162
      • SEA 07:20
        5h 12m
        Direct
        DCA 15:32
        Seattle - Washington D.C. | Mon, Oct 12 | Delta Air Lines
        IAD 07:05
        5h 51m
        Direct
        SEA 09:56
        Washington D.C. - Seattle | Sun, Oct 18 | Delta Air Lines
        MXN$4,199
        27% off
        MXN$5,757 MXN$4,199
      • SEA 07:20
        5h 3m
        Direct
        DCA 15:23
        Seattle - Washington D.C. | Mon, Nov 2 | Delta Air Lines
        DCA 16:45
        5h 50m
        Direct
        SEA 19:35
        Washington D.C. - Seattle | Tue, Nov 10 | Delta Air Lines
        MXN$4,202
        27% off
        MXN$5,757 MXN$4,202
      • SEA 23:59
        7h 7m
        1 stop
        DCA 10:06
        Seattle - Washington D.C. | Sat, Nov 7 | American Airlines
        DCA 06:11
        8h 27m
        1 stop
        SEA 11:38
        Washington D.C. - Seattle | Sat, Nov 14 | American Airlines
        MXN$3,555
        38% off
        MXN$5,757 MXN$3,555
      • SEA 06:09
        8h 55m
        1 stop
        DCA 18:04
        Seattle - Washington D.C. | Fri, Dec 4 | American Airlines
        DCA 05:00
        8h 12m
        1 stop
        SEA 10:12
        Washington D.C. - Seattle | Fri, Dec 11 | American Airlines
        MXN$3,555
        38% off
        MXN$5,757 MXN$3,555
      • SEA 23:59
        7h 7m
        1 stop
        DCA 10:06
        Seattle - Washington D.C. | Mon, Oct 26 | American Airlines
        DCA 18:33
        9h 3m
        1 stop
        SEA 00:36
        Washington D.C. - Seattle | Thu, Oct 29 | American Airlines
        MXN$3,631
        37% off
        MXN$5,757 MXN$3,631
      • SEA 23:34
        7h 26m
        1 stop
        DCA 10:00
        Seattle - Washington D.C. | Thu, Nov 19 | American Airlines
        DCA 06:11
        8h 26m
        1 stop
        SEA 11:37
        Washington D.C. - Seattle | Tue, Nov 24 | American Airlines
        MXN$3,752
        35% off
        MXN$5,757 MXN$3,752
      • SEA 06:12
        7h 15m
        1 stop
        DCA 16:27
        Seattle - Washington D.C. | Tue, Oct 27 | American Airlines
        DCA 18:33
        9h 3m
        1 stop
        SEA 00:36
        Washington D.C. - Seattle | Mon, Nov 2 | American Airlines
        MXN$3,771
        34% off
        MXN$5,757 MXN$3,771
      • SEA 13:00
        17h 25m
        1 stop
        WAS 14:00
        Seattle - Washington D.C. | Thu, Oct 8 | Normal Airline
        WAS 15:00
        6h
        Direct
        SEA 16:00
        Washington D.C. - Seattle | Sat, Oct 10 | Normal Airline
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      • Cheapest nonstop
        SEA 13:49
        5h 10m
        Direct
        DCA 21:59
        Seattle - Washington D.C. | Thu, Oct 29 | Alaska Airlines
        MXN$2,504 MXN$4,092
        39% off
        39% off
        MXN$4,092 MXN$2,504
      • SEA 07:20
        5h 3m
        Direct
        DCA 15:23
        Seattle - Washington D.C. | Sun, Oct 25 | Delta Air Lines
        MXN$2,693 MXN$4,092
        34% off
        34% off
        MXN$4,092 MXN$2,693
      • SEA 07:20
        5h 3m
        Direct
        DCA 15:23
        Seattle - Washington D.C. | Mon, Oct 26 | Delta Air Lines
        MXN$2,693 MXN$4,092
        34% off
        34% off
        MXN$4,092 MXN$2,693
      • SEA 07:20
        5h 3m
        Direct
        DCA 15:23
        Seattle - Washington D.C. | Thu, Oct 29 | Delta Air Lines
        MXN$2,706
        34% off
        MXN$4,092 MXN$2,706
      • SEA 19:41
        14h 9m
        1 stop
        DCA 12:50
        Seattle - Washington D.C. | Sat, Oct 24 | Frontier Airlines
        MXN$2,043
        50% off
        MXN$4,092 MXN$2,043
      • SEA 19:41
        23h 17m
        1 stop
        DCA 21:58
        Seattle - Washington D.C. | Fri, Oct 16 | Frontier Airlines
        MXN$2,407
        41% off
        MXN$4,092 MXN$2,407
      • SEA 08:11
        9h 47m
        1 stop
        DCA 20:58
        Seattle - Washington D.C. | Wed, Nov 11 | American Airlines
        MXN$2,599
        36% off
        MXN$4,092 MXN$2,599
      • SEA 11:17
        7h 43m
        1 stop
        DCA 22:00
        Seattle - Washington D.C. | Sat, Oct 24 | American Airlines
        MXN$2,895
        28% off
        MXN$4,092 MXN$2,895
      • SEA 23:59
        9h
        1 stop
        DCA 11:59
        Seattle - Washington D.C. | Mon, Oct 26 | American Airlines
        MXN$2,962
        28% off
        MXN$4,092 MXN$2,962
      • SEA 16:27
        26h 32m
        1 stop
        DCA 21:59
        Seattle - Washington D.C. | Mon, Oct 19 | Frontier Airlines
        MXN$2,987
        27% off
        MXN$4,092 MXN$2,987
      • SEA 13:00
        17h 25m
        1 stop
        WAS 14:00
        Seattle - Washington D.C. | Thu, Oct 8 | Normal Airline
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Displayed flight fares from Seattle-Tacoma International Airport to Ronald Reagan Washington National Airport are based on average prices across airlines for the next 3 months according to the latest Trip.com data.

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

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

The data is based on the past 12 months and shows the average one-way ticket prices from Seattle-Tacoma International Airport to Ronald Reagan Washington National 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 Seattle-Tacoma International Airport to Ronald Reagan Washington National Airport are usually in November, with an average price of MXN$3,199. It is best to avoid July, when the average price can reach MXN$10,271.

MXN$10,271
MXN$6,735
MXN$3,199
0
    Cheapest
  • MXN$7,404
    Oct
  • MXN$3,199
    Nov
  • MXN$5,138
    Dec
  • MXN$7,533
    Jan
  • MXN$5,650
    Feb
  • MXN$5,191
    Mar
  • MXN$5,369
    Apr
  • MXN$3,283
    May
  • MXN$6,669
    Jun
  • MXN$10,271
    Jul
  • MXN$8,755
    Aug
  • MXN$5,073
    Sep

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

The data is based on the past 12 months and shows the average ticket prices from Seattle-Tacoma International Airport to Ronald Reagan Washington National 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 Seattle-Tacoma International Airport to Ronald Reagan Washington National Airport is Saturday, with average prices usually lower than other days. Avoid departing on Monday as prices are typically highest on that day.

MXN$6,773
MXN$4,840
MXN$2,906
MXN$973
    Cheapest
  • MXN$6,773
    Mon
  • MXN$6,030
    Tue
  • MXN$6,429
    Wed
  • MXN$6,341
    Thu
  • MXN$5,825
    Fri
  • MXN$2,906
    Sat
  • MXN$6,169
    Sun

Which airline offers the cheapest flights from Seattle-Tacoma International Airport to Ronald Reagan Washington National Airport?

The cheapest airline flying from Seattle-Tacoma International Airport to Ronald Reagan Washington National Airport is Frontier Airlines (from MXN$2,043) among 7 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Frontier Airlines
From MXN$2,043
Alaska Airlines
From MXN$2,504
Delta Air Lines
From MXN$2,706
American Airlines
From MXN$2,895
Hahn Air
From MXN$3,768
United Airlines
From MXN$3,801
Jetblue Airways
From MXN$4,986

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What is the flight schedule from Seattle-Tacoma International Airport to Ronald Reagan Washington National Airport?

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

Flight info.
Departure
Arrival
Weekly Schedule

  1. DL786

    Seattle-Tacoma International Airport

    07:20

    SEA

    5h 3m

    15:23

    DCA

    S M T W T F S
    Search

  2. AS002

    Seattle-Tacoma International Airport

    13:46

    SEA

    5h 13m

    21:59

    DCA

    S M T W T F S
    Search

  3. DL810

    Seattle-Tacoma International Airport

    23:05

    SEA

    4h 21m

    Direct

    06:26

    DTW

    S M T W T F S
    Search

  4. DL1558

    Detroit Metropolitan Wayne County Airport

    07:10

    DTW

    1h 35m

    Direct

    08:45

    DCA

    S M T W T F S

  5. AA3234

    Seattle-Tacoma International Airport

    10:31

    SEA

    4h 24m

    Direct

    16:55

    ORD

    S M T W T F S
    Search

  6. AA1187

    O'Hare International Airport

    17:54

    ORD

    2h 6m

    Direct

    21:00

    DCA

    S M T W T F S

  7. AA2379

    Seattle-Tacoma International Airport

    23:28

    SEA

    3h 57m

    Direct

    05:25

    ORD

    S M T W T F S
    Search

  8. AA2345

    O'Hare International Airport

    08:32

    ORD

    2h 1m

    Direct

    11:33

    DCA

    S M T W T F S

  9. DL953

    Seattle-Tacoma International Airport

    23:53

    SEA

    3h 22m

    Direct

    05:15

    MSP

    S M T W T F S
    Search

  10. DL2958

    Minneapolis-Saint Paul International Airport

    07:35

    MSP

    2h 29m

    Direct

    11:04

    DCA

    S M T W T F S

  11. AA2379

    Seattle-Tacoma International Airport

    23:28

    SEA

    3h 57m

    Direct

    05:25

    ORD

    S M T W T F S
    Search

  12. AA2700

    O'Hare International Airport

    08:40

    ORD

    2h 7m

    Direct

    11:47

    DCA

    S M T W T F S

  13. AA1872

    Seattle-Tacoma International Airport

    05:50

    SEA

    4h 17m

    Direct

    12:07

    ORD

    S M T W T F S
    Search

  14. AA2769

    O'Hare International Airport

    14:59

    ORD

    2h 4m

    Direct

    18:03

    DCA

    S M T W T F S

  15. AA659

    Seattle-Tacoma International Airport

    22:36

    SEA

    5h 3m

    Direct

    06:39

    CLT

    S M T W T F S
    Search

  16. AA3043

    Charlotte Douglas International Airport

    09:16

    CLT

    1h 33m

    Direct

    10:49

    DCA

    S M T W T F S

  17. DL652

    Seattle-Tacoma International Airport

    23:35

    SEA

    4h 50m

    Direct

    07:25

    ATL

    S M T W T F S
    Search

  18. DL1961

    Hartsfield–Jackson Atlanta International Airport

    11:10

    ATL

    1h 48m

    Direct

    12:58

    DCA

    S M T W T F S
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About Seattle-Tacoma International Airport and Ronald Reagan Washington National Airport

Learn about Seattle-Tacoma International Airport (SEA) and Ronald Reagan Washington National Airport (DCA) — including location, terminals, transportation, and travel tips.

Flight distance 3,741.3km
Cheapest one-way ticket price MXN$2,043
Cheapest return ticket price MXN$3,073

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

  • How long is the flight from Seattle-Tacoma International Airport to Ronald Reagan Washington National Airport?

    Seattle-Tacoma International Airport to Ronald Reagan Washington National Airport takes about 4 hours 30 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 2 daily flights from Seattle-Tacoma International Airport (SEA) to Ronald Reagan Washington National Airport (DCA).
  • The earliest flight from Seattle-Tacoma International Airport to Ronald Reagan Washington National Airport departs at 07:20, and the last departs at 13:46, with about 3 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Seattle-Tacoma International Airport (SEA) to Ronald Reagan Washington National Airport (DCA) is quite popular. Without considering departure times or holidays, tickets cost around MXN$9,032 in October, the most expensive month to book this route.
  • Delta Air Lines is a very popular airline operating an average of 692 flights per month.
  • One-way flights from Seattle-Tacoma International Airport to Ronald Reagan Washington National Airport currently start from MXN$2,043, and round-trip fares start from MXN$3,073. The current lowest fare is a Frontier Airlines flight departing on Sat, Oct 24; prices may vary depending on availability.
  • Yes. Alaska Airlines and Delta Air Lines operate direct flights from Seattle-Tacoma International Airport to Ronald Reagan Washington National Airport, with an average flight time of 4 hours 28 minutes, and around 21 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Seattle-Tacoma International Airport to Ronald Reagan Washington National Airport is MXN$5,378. Prices may vary depending on the departure date, airline, and availability.
  • Seattle-Tacoma International Airport to Ronald Reagan Washington National Airport operates around 21 weekly flights, mainly by Alaska Airlines and Delta Air Lines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Seattle-Tacoma International Airport and Ronald Reagan Washington National Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

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