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

Explore the cheapest one-way and round-trip flights from Ronald Reagan Washington National Airport to Seattle-Tacoma International Airport over the next 90 days, with one-way fares from PHP 8,466 and round-trip from PHP 13,922. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      DCA 16:25
      6h 21m
      Direct
      SEA 19:46
      Washington D.C. - Seattle | Tue, Dec 22 | Delta Air Lines
      SEA 07:20
      4h 47m
      Direct
      DCA 15:07
      Seattle - Washington D.C. | Thu, Dec 24 | Delta Air Lines
      PHP 15,255 PHP 23,640
      35% off
      35% off
      PHP 23,640 PHP 15,255
    • DCA 16:45
      5h 50m
      Direct
      SEA 19:35
      Washington D.C. - Seattle | Sat, Nov 14 | Delta Air Lines
      SEA 07:20
      5h 3m
      Direct
      DCA 15:23
      Seattle - Washington D.C. | Tue, Nov 17 | Delta Air Lines
      PHP 17,795 PHP 23,640
      25% off
      25% off
      PHP 23,640 PHP 17,795
    • DCA 16:25
      6h 2m
      Direct
      SEA 19:27
      Washington D.C. - Seattle | Wed, Dec 9 | Delta Air Lines
      SEA 07:20
      4h 53m
      Direct
      DCA 15:13
      Seattle - Washington D.C. | Mon, Dec 14 | Delta Air Lines
      PHP 17,901 PHP 23,640
      24% off
      24% off
      PHP 23,640 PHP 17,901
    • DCA 16:45
      5h 50m
      Direct
      SEA 19:35
      Washington D.C. - Seattle | Tue, Nov 17 | Delta Air Lines
      SEA 11:58
      5h 8m
      Direct
      IAD 20:06
      Seattle - Washington D.C. | Tue, Nov 24 | Delta Air Lines
      PHP 17,910
      24% off
      PHP 23,640 PHP 17,910
    • DCA 08:00
      5h 59m
      Direct
      SEA 10:59
      Washington D.C. - Seattle | Tue, Nov 17 | Alaska Airlines
      SEA 21:49
      4h 55m
      Direct
      IAD 05:44
      Seattle - Washington D.C. | Tue, Nov 24 | Alaska Airlines
      PHP 18,572
      21% off
      PHP 23,640 PHP 18,572
    • DCA 16:45
      5h 50m
      Direct
      SEA 19:35
      Washington D.C. - Seattle | Wed, Nov 18 | Delta Air Lines
      SEA 11:58
      5h 8m
      Direct
      IAD 20:06
      Seattle - Washington D.C. | Mon, Nov 23 | Delta Air Lines
      PHP 19,099
      19% off
      PHP 23,640 PHP 19,099
    • DCA 17:11
      6h 2m
      Direct
      SEA 20:13
      Washington D.C. - Seattle | Thu, Nov 19 | Alaska Airlines
      SEA 21:49
      4h 55m
      Direct
      IAD 05:44
      Seattle - Washington D.C. | Sat, Nov 21 | Alaska Airlines
      PHP 19,857
      16% off
      PHP 23,640 PHP 19,857
    • DCA 10:13
      8h 30m
      1 stop
      SEA 15:43
      Washington D.C. - Seattle | Tue, Nov 17 | American Airlines
      SEA 10:47
      7h 5m
      1 stop
      DCA 20:52
      Seattle - Washington D.C. | Tue, Nov 24 | American Airlines
      PHP 13,922
      41% off
      PHP 23,640 PHP 13,922
    • DCA 14:54
      8h 25m
      1 stop
      SEA 20:19
      Washington D.C. - Seattle | Tue, Dec 22 | American Airlines
      SEA 10:29
      7h 29m
      1 stop
      DCA 20:58
      Seattle - Washington D.C. | Thu, Dec 24 | American Airlines
      PHP 16,501
      30% off
      PHP 23,640 PHP 16,501
    • WAS 13:00
      17h 25m
      1 stop
      SEA 14:00
      Washington D.C. - Seattle | Wed, Oct 28 | Normal Airline
      SEA 15:00
      6h
      Direct
      WAS 16:00
      Seattle - Washington D.C. | Fri, Oct 30 | Normal Airline
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    • Cheapest
      DCA 18:00
      18h 51m
      1 stop
      SEA 09:51
      Washington D.C. - Seattle | Mon, Nov 2 | Frontier Airlines
      PHP 8,466 PHP 12,910
      34% off
      34% off
      PHP 12,910 PHP 8,466
    • DCA 18:00
      24h 12m
      1 stop
      SEA 15:12
      Washington D.C. - Seattle | Fri, Dec 4 | Frontier Airlines
      PHP 9,358 PHP 12,910
      28% off
      28% off
      PHP 12,910 PHP 9,358
    • DCA 13:00
      29h 12m
      1 stop
      SEA 15:12
      Washington D.C. - Seattle | Wed, Nov 25 | Frontier Airlines
      PHP 10,010 PHP 12,910
      22% off
      22% off
      PHP 12,910 PHP 10,010
    • DCA 16:25
      6h 2m
      Direct
      SEA 19:27
      Washington D.C. - Seattle | Tue, Dec 8 | Delta Air Lines
      PHP 10,451
      19% off
      PHP 12,910 PHP 10,451
    • DCA 07:00
      11h 43m
      1 stop
      SEA 15:43
      Washington D.C. - Seattle | Thu, Dec 24 | Frontier Airlines
      PHP 10,470
      19% off
      PHP 12,910 PHP 10,470
    • DCA 07:00
      11h 40m
      1 stop
      SEA 15:40
      Washington D.C. - Seattle | Sat, Dec 19 | Frontier Airlines
      PHP 10,480
      19% off
      PHP 12,910 PHP 10,480
    • DCA 18:00
      24h 43m
      1 stop
      SEA 15:43
      Washington D.C. - Seattle | Fri, Dec 25 | Frontier Airlines
      PHP 10,643
      18% off
      PHP 12,910 PHP 10,643
    • DCA 18:00
      24h 12m
      1 stop
      SEA 15:12
      Washington D.C. - Seattle | Fri, Nov 27 | Frontier Airlines
      PHP 10,643
      18% off
      PHP 12,910 PHP 10,643
    • DCA 07:00
      29h 51m
      1 stop
      SEA 09:51
      Washington D.C. - Seattle | Wed, Nov 18 | Frontier Airlines
      PHP 10,844
      16% off
      PHP 12,910 PHP 10,844
    • WAS 13:00
      17h 25m
      1 stop
      SEA 14:00
      Washington D.C. - Seattle | Wed, Oct 28 | Normal Airline
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    • Cheapest nonstop
      DCA 16:25
      6h 2m
      Direct
      SEA 19:27
      Washington D.C. - Seattle | Tue, Dec 8 | Delta Air Lines
      PHP 10,451 PHP 12,910
      19% off
      19% off
      PHP 12,910 PHP 10,451
    • DCA 16:50
      6h 22m
      Direct
      SEA 20:12
      Washington D.C. - Seattle | Wed, Dec 30 | Delta Air Lines
      PHP 11,199 PHP 36,354
      69% off
      69% off
      PHP 36,354 PHP 11,199
    • DCA 08:00
      6h 3m
      Direct
      SEA 11:03
      Washington D.C. - Seattle | Wed, Jan 6 | Alaska Airlines
      PHP 13,001 PHP 36,354
      64% off
      64% off
      PHP 36,354 PHP 13,001
    • DCA 08:00
      6h 17m
      Direct
      SEA 11:17
      Washington D.C. - Seattle | Sat, Dec 5 | Alaska Airlines
      PHP 13,097
      64% off
      PHP 36,354 PHP 13,097
    • DCA 17:05
      6h 17m
      Direct
      SEA 20:22
      Washington D.C. - Seattle | Wed, Dec 9 | Alaska Airlines
      PHP 13,222
      64% off
      PHP 36,354 PHP 13,222
    • DCA 17:11
      6h 2m
      Direct
      SEA 20:13
      Washington D.C. - Seattle | Sat, Nov 14 | Alaska Airlines
      PHP 13,366
      63% off
      PHP 36,354 PHP 13,366
    • DCA 08:00
      5h 59m
      Direct
      SEA 10:59
      Washington D.C. - Seattle | Wed, Oct 28 | Alaska Airlines
      PHP 13,395
      63% off
      PHP 36,354 PHP 13,395
    • DCA 16:25
      6h 20m
      Direct
      SEA 19:45
      Washington D.C. - Seattle | Sat, Dec 12 | Delta Air Lines
      PHP 13,442
      63% off
      PHP 36,354 PHP 13,442
    • DCA 16:50
      6h 22m
      Direct
      SEA 20:12
      Washington D.C. - Seattle | Fri, Dec 25 | Delta Air Lines
      PHP 14,641
      60% off
      PHP 36,354 PHP 14,641
    • WAS 13:00
      17h 25m
      1 stop
      SEA 14:00
      Washington D.C. - Seattle | Wed, Oct 28 | Normal Airline
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    • Cheapest nonstop
      DCA 16:50
      6h 22m
      Direct
      SEA 20:12
      Washington D.C. - Seattle | Wed, Dec 30 | Delta Air Lines
      PHP 11,199 PHP 36,354
      69% off
      69% off
      PHP 36,354 PHP 11,199
    • DCA 08:00
      6h 3m
      Direct
      SEA 11:03
      Washington D.C. - Seattle | Wed, Jan 6 | Alaska Airlines
      PHP 13,001 PHP 36,354
      64% off
      64% off
      PHP 36,354 PHP 13,001
    • DCA 08:00
      6h 17m
      Direct
      SEA 11:17
      Washington D.C. - Seattle | Sat, Dec 5 | Alaska Airlines
      PHP 13,097 PHP 36,354
      64% off
      64% off
      PHP 36,354 PHP 13,097
    • DCA 17:05
      6h 17m
      Direct
      SEA 20:22
      Washington D.C. - Seattle | Wed, Dec 9 | Alaska Airlines
      PHP 13,222
      64% off
      PHP 36,354 PHP 13,222
    • DCA 17:11
      6h 2m
      Direct
      SEA 20:13
      Washington D.C. - Seattle | Sat, Nov 14 | Alaska Airlines
      PHP 13,366
      63% off
      PHP 36,354 PHP 13,366
    • DCA 08:00
      5h 59m
      Direct
      SEA 10:59
      Washington D.C. - Seattle | Wed, Oct 28 | Alaska Airlines
      PHP 13,395
      63% off
      PHP 36,354 PHP 13,395
    • DCA 16:25
      6h 20m
      Direct
      SEA 19:45
      Washington D.C. - Seattle | Sat, Dec 12 | Delta Air Lines
      PHP 13,442
      63% off
      PHP 36,354 PHP 13,442
    • DCA 16:50
      6h 22m
      Direct
      SEA 20:12
      Washington D.C. - Seattle | Fri, Dec 25 | Delta Air Lines
      PHP 14,641
      60% off
      PHP 36,354 PHP 14,641
    • DCA 16:25
      6h 2m
      Direct
      SEA 19:27
      Washington D.C. - Seattle | Wed, Nov 25 | Delta Air Lines
      PHP 17,824
      51% off
      PHP 36,354 PHP 17,824
    • WAS 13:00
      17h 25m
      1 stop
      SEA 14:00
      Washington D.C. - Seattle | Wed, Oct 28 | Normal Airline
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    • Cheapest nonstop
      DCA 08:00
      5h 59m
      Direct
      SEA 10:59
      Washington D.C. - Seattle | Wed, Oct 28 | Alaska Airlines
      PHP 13,395 PHP 36,789
      64% off
      64% off
      PHP 36,789 PHP 13,395
    • DCA 17:00
      5h 55m
      Direct
      SEA 19:55
      Washington D.C. - Seattle | Tue, Oct 27 | Alaska Airlines
      PHP 13,807 PHP 36,789
      62% off
      62% off
      PHP 36,789 PHP 13,807
    • DCA 16:45
      5h 50m
      Direct
      SEA 19:35
      Washington D.C. - Seattle | Tue, Oct 27 | Delta Air Lines
      PHP 15,945 PHP 36,789
      56% off
      56% off
      PHP 36,789 PHP 15,945
    • DCA 17:00
      5h 55m
      Direct
      SEA 19:55
      Washington D.C. - Seattle | Sat, Oct 31 | Alaska Airlines
      PHP 30,279
      18% off
      PHP 36,789 PHP 30,279
    • DCA 08:00
      5h 59m
      Direct
      SEA 10:59
      Washington D.C. - Seattle | Fri, Oct 30 | Alaska Airlines
      PHP 30,537
      17% off
      PHP 36,789 PHP 30,537
    • DCA 08:39
      8h 41m
      1 stop
      SEA 14:20
      Washington D.C. - Seattle | Sun, Nov 1 | American Airlines
      PHP 14,027
      62% off
      PHP 36,789 PHP 14,027
    • DCA 14:52
      8h 23m
      1 stop
      SEA 20:15
      Washington D.C. - Seattle | Wed, Oct 28 | American Airlines
      PHP 14,430
      61% off
      PHP 36,789 PHP 14,430
    • DCA 14:52
      8h 23m
      1 stop
      SEA 20:15
      Washington D.C. - Seattle | Tue, Oct 27 | American Airlines
      PHP 14,660
      60% off
      PHP 36,789 PHP 14,660
    • DCA 14:52
      8h 23m
      1 stop
      SEA 20:15
      Washington D.C. - Seattle | Fri, Oct 30 | American Airlines
      PHP 30,902
      16% off
      PHP 36,789 PHP 30,902
    • WAS 13:00
      17h 25m
      1 stop
      SEA 14:00
      Washington D.C. - Seattle | Wed, Oct 28 | Normal Airline
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    • DCA 16:45
      5h 50m
      Direct
      SEA 19:35
      Washington D.C. - Seattle | Sat, Nov 7 | Delta Air Lines
      PHP 15,312 PHP 39,356
      61% off
      61% off
      PHP 39,356 PHP 15,312
    • DCA 16:45
      5h 50m
      Direct
      SEA 19:35
      Washington D.C. - Seattle | Mon, Nov 2 | Delta Air Lines
      PHP 15,945 PHP 39,356
      59% off
      59% off
      PHP 39,356 PHP 15,945
    • DCA 16:45
      5h 50m
      Direct
      SEA 19:35
      Washington D.C. - Seattle | Thu, Nov 5 | Delta Air Lines
      PHP 17,575 PHP 39,356
      55% off
      55% off
      PHP 39,356 PHP 17,575
    • DCA 16:45
      5h 50m
      Direct
      SEA 19:35
      Washington D.C. - Seattle | Fri, Nov 6 | Delta Air Lines
      PHP 18,169
      54% off
      PHP 39,356 PHP 18,169
    • DCA 16:45
      5h 50m
      Direct
      SEA 19:35
      Washington D.C. - Seattle | Sun, Nov 1 | Delta Air Lines
      PHP 26,549
      33% off
      PHP 39,356 PHP 26,549
    • DCA 16:45
      5h 50m
      Direct
      SEA 19:35
      Washington D.C. - Seattle | Tue, Nov 3 | Delta Air Lines
      PHP 31,036
      21% off
      PHP 39,356 PHP 31,036
    • DCA 16:45
      5h 50m
      Direct
      SEA 19:35
      Washington D.C. - Seattle | Fri, Oct 30 | Delta Air Lines
      PHP 32,062
      19% off
      PHP 39,356 PHP 32,062
    • DCA 16:45
      5h 50m
      Direct
      SEA 19:35
      Washington D.C. - Seattle | Sun, Nov 8 | Delta Air Lines
      PHP 33,059
      16% off
      PHP 39,356 PHP 33,059
    • DCA 17:00
      5h 55m
      Direct
      SEA 19:55
      Washington D.C. - Seattle | Sat, Oct 31 | Alaska Airlines
      PHP 30,279
      17% off
      PHP 36,354 PHP 30,279
    • WAS 13:00
      17h 25m
      1 stop
      SEA 14:00
      Washington D.C. - Seattle | Wed, Oct 28 | 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 PHP 4,334. It is best to avoid November, when the average price can reach PHP 27,300.

PHP 27,300
PHP 15,817
PHP 4,334
0
  • PHP 4,334
    Feb
  • PHP 18,447
    Mar
  • PHP 17,230
    Apr
  • PHP 21,397
    May
  • PHP 17,699
    Jun
  • PHP 20,866
    Jul
  • PHP 24,916
    Aug
  • PHP 20,661
    Sep
  • PHP 19,531
    Oct
  • PHP 27,300
    Nov
  • PHP 16,357
    Dec
  • PHP 9,104
    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 Thursday as prices are typically highest on that day.

PHP 24,465
PHP 17,226
PHP 9,986
PHP 2,747
    Cheapest
  • PHP 19,739
    Mon
  • PHP 21,915
    Tue
  • PHP 20,195
    Wed
  • PHP 24,465
    Thu
  • PHP 19,411
    Fri
  • PHP 9,986
    Sat
  • PHP 15,326
    Sun

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

The cheapest airline flying from Ronald Reagan Washington National Airport to Seattle-Tacoma International Airport is Frontier Airlines (from PHP 8,466) among 8 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Frontier Airlines
From PHP 8,466
Delta Air Lines
From PHP 10,451
American Airlines
From PHP 11,151
Alaska Airlines
From PHP 11,995
Air Canada
From PHP 13,558
Hahn Air
From PHP 14,641
United Airlines
From PHP 14,775
Jetblue Airways
From PHP 21,611

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What is the 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. DL2869

    Ronald Reagan Washington National Airport

    06:00

    DCA

    1h 48m

    Direct

    07:48

    DTW

    S M T W T F S
    Search

  2. DL734

    Detroit Metropolitan Wayne County Airport

    08:25

    DTW

    5h 17m

    Direct

    10:42

    SEA

    S M T W T F S

  3. AS009

    Ronald Reagan Washington National Airport

    17:08

    DCA

    5h 50m

    Direct

    19:58

    PDX

    S M T W T F S
    Search

  4. AS2254

    Portland International Airport

    17:38

    PDX

    1h 2m

    Direct

    18:40

    SEA

    S - - - - - S

  5. AA795

    Ronald Reagan Washington National Airport

    14:59

    DCA

    1h 46m

    Direct

    16:45

    CLT

    S - - - - - S
    Search

  6. AA3252

    Charlotte Douglas International Airport

    14:08

    CLT

    5h 55m

    Direct

    17:03

    SEA

    S - - - - - S

  7. F9685

    Ronald Reagan Washington National Airport

    07:00

    DCA

    4h 16m

    Direct

    09:16

    DEN

    S M T W T F S
    Search

  8. F91175

    Denver International Airport

    13:07

    DEN

    3h 5m

    Direct

    15:12

    SEA

    S - T - T F -

  9. AS015

    Ronald Reagan Washington National Airport

    10:59

    DCA

    5h 24m

    Direct

    13:23

    SAN

    S M T W T F S
    Search

  10. AS735

    San Diego International Airport

    17:00

    SAN

    3h 2m

    Direct

    20:02

    SEA

    S - - - - - S

  11. F9689

    Ronald Reagan Washington National Airport

    18:00

    DCA

    4h 10m

    Direct

    20:10

    DEN

    S M - W T F S
    Search

  12. F91175

    Denver International Airport

    13:07

    DEN

    3h 5m

    Direct

    15:12

    SEA

    S - T - T F -

  13. F9687

    Ronald Reagan Washington National Airport

    13:00

    DCA

    4h 9m

    Direct

    15:09

    DEN

    S - T W T F S
    Search

  14. F91175

    Denver International Airport

    13:07

    DEN

    3h 5m

    Direct

    15:12

    SEA

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

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

Flight distance 3,741.3km
Cheapest one-way ticket price PHP 8,466
Cheapest return ticket price PHP 13,922

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

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

    Ronald Reagan Washington National Airport to Seattle-Tacoma International Airport takes about 5 hours 17 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 2 daily flights from Ronald Reagan Washington National Airport (DCA) to Seattle-Tacoma International Airport (SEA).
  • The earliest flight from Ronald Reagan Washington National Airport to Seattle-Tacoma International Airport departs at 08:00, and the last departs at 17:00, 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 Ronald Reagan Washington National Airport (DCA) to Seattle-Tacoma International Airport (SEA) is quite popular. Without considering departure times or holidays, tickets cost around PHP 39,023 in October, 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.
  • One-way flights from Ronald Reagan Washington National Airport to Seattle-Tacoma International Airport currently start from PHP 8,466, and round-trip fares start from PHP 13,922. The current lowest fare is a Frontier Airlines flight departing on Mon, Nov 2; prices may vary depending on availability.
  • Yes. Alaska Airlines and Delta Air Lines operate direct flights from Ronald Reagan Washington National Airport to Seattle-Tacoma International Airport, with an average flight time of 5 hours 14 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 Ronald Reagan Washington National Airport to Seattle-Tacoma International Airport is PHP 18,887. Prices may vary depending on the departure date, airline, and availability.
  • Ronald Reagan Washington National Airport to Seattle-Tacoma International 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 Ronald Reagan Washington National Airport and Seattle-Tacoma International 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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