Cheap Flights from Seattle, WA to Washington D.C., DC from $81

On Cheapflightsplus.com you will find 4 direct and 89 connecting flights from Seattle to Washington D.C.. You can compare airfare deals from 4 airlines and multiple travel sites from $81, book and save on cheap plane tickets and last minute offers. Also check out SEA-WAS flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Seattle to Washington D.C. Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $81 (one-way), $139 (round-trip).
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Full flight schedule will help you in detecting at what time planes fly from Seattle to Washington D.C.. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
08:10 — 16:09
08:10 — 16:09 UA1102 United Airlines
Seattle — Washington D.C.
4h 59m
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from$281
14:05 — 21:59
14:05 — 21:59 AS2 Alaska Airlines
Seattle — Washington D.C.
4h 54m
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from$168
21:40 — 05:32
+1 day
21:40 — 05:32 AS307 Alaska Airlines
Seattle — Washington D.C.
4h 52m
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from$151
23:15 — 07:07
+1 day
23:15 — 07:07 UA1810 United Airlines
Seattle — Washington D.C.
4h 52m
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from$224
05:00 — 14:59
05:00 — 08:47 UA2269 United Airlines
Seattle — Denver
57m stop
09:40 — 14:59 UA1767 United Airlines
Denver — Washington D.C.
6h 59m
including layover
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from$192
06:15 — 17:53
06:15 — 09:02 UA1571 United Airlines
Seattle — Los Angeles
1h 3m stop
10:05 — 17:53 UA2667 United Airlines
Los Angeles — Washington D.C.
8h 38m
including layover
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from$192
07:00 — 20:59
07:00 — 09:50 AS1246 Alaska Airlines
Seattle — Los Angeles
3h 31m stop
13:10 — 20:59 AS6 Alaska Airlines
Los Angeles — Washington D.C.
10h 59m
including layover
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from$180
07:42 — 17:53
07:42 — 08:34 AS2180 Alaska Airlines
Seattle — Portland
1h 21m stop
09:55 — 17:53 AS10 Alaska Airlines
Portland — Washington D.C.
7h 11m
including layover
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from$179
08:05 — 17:40
08:05 — 08:58 AS3362 Alaska Airlines
Seattle — Portland
51m stop
09:49 — 17:40 AS10 Alaska Airlines
Portland — Washington D.C.
6h 35m
including layover
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from$205
08:10 — 20:59
08:02 — 10:52 AS1306 Alaska Airlines
Seattle — Los Angeles
1h 50m stop
13:10 — 20:59 AS6 Alaska Airlines
Los Angeles — Washington D.C.
9h 49m
including layover
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from$180
09:00 — 19:12
08:30 — 12:14 UA1829 United Airlines
Seattle — Denver
1h 8m stop
13:30 — 18:48 UA347 United Airlines
Denver — Washington D.C.
7h 12m
including layover
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from$192
09:37 — 21:59
09:19 — 13:04 F93406 Frontier Airlines
Seattle — Denver
3h 2m stop
16:38 — 21:58 F9690 Frontier Airlines
Denver — Washington D.C.
9h 22m
including layover
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from$81
11:05 — 21:01
11:05 — 17:10 UA747 United Airlines
Seattle — Chicago
58m stop
18:08 — 21:01 UA444 United Airlines
Chicago — Washington D.C.
6h 56m
including layover
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from$191
11:05 — 20:59
11:05 — 17:10 UA747 United Airlines
Seattle — Chicago
50m stop
18:00 — 20:59 UA1531 United Airlines
Chicago — Washington D.C.
6h 54m
including layover
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from$192
12:35 — 23:30
12:35 — 16:17 UA1483 United Airlines
Seattle — Denver
1h 53m stop
18:10 — 23:30 UA2408 United Airlines
Denver — Washington D.C.
7h 55m
including layover
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from$191
12:50 — 00:29
+1 day
12:50 — 15:09 UA1509 United Airlines
Seattle — San Francisco
1h 11m stop
16:20 — 00:29 UA375 United Airlines
San Francisco — Washington D.C.
8h 39m
including layover
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from$213
15:15 — 12:06
+1 day
09:19 — 13:04 F93406 Frontier Airlines
Seattle — Denver
11h 41m stop
06:45 — 12:10 F9686 Frontier Airlines
Denver — Washington D.C.
17h 51m
including layover
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from$87
15:15 — 16:59
+1 day
09:19 — 13:04 F93406 Frontier Airlines
Seattle — Denver
16h 42m stop
11:40 — 16:59 F9688 Frontier Airlines
Denver — Washington D.C.
22h 44m
including layover
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from$87
16:58 — 05:18
+1 day
16:58 — 19:10 UA2482 United Airlines
Seattle — San Francisco
2h 2m stop
21:12 — 05:18 UA2110 United Airlines
San Francisco — Washington D.C.
9h 20m
including layover
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from$215
17:25 — 07:08
+1 day
17:25 — 20:12 UA2397 United Airlines
Seattle — Los Angeles
3h 8m stop
23:20 — 07:08 UA2282 United Airlines
Los Angeles — Washington D.C.
10h 43m
including layover
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from$235
18:00 — 11:23
+1 day
18:00 — 21:44 UA1279 United Airlines
Seattle — Denver
8h 16m stop
06:00 — 11:23 UA1911 United Airlines
Denver — Washington D.C.
14h 23m
including layover
Find flight
from$282
19:13 — 05:16
+1 day
19:13 — 22:57 UA1387 United Airlines
Seattle — Denver
1h 2m stop
23:59 — 05:16 UA1924 United Airlines
Denver — Washington D.C.
7h 3m
including layover
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from$216
19:32 — 07:00
+1 day
18:13 — 20:32 UA737 United Airlines
Seattle — San Francisco
1h 5m stop
22:45 — 06:52 UA1849 United Airlines
San Francisco — Washington D.C.
8h 28m
including layover
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from$192
20:59 — 17:40
+1 day
20:59 — 21:54 AS146 Alaska Airlines
Seattle — Portland
11h 55m stop
09:49 — 17:40 AS10 Alaska Airlines
Portland — Washington D.C.
17h 41m
including layover
Find flight
from$247
21:36 — 16:59
+1 day
20:19 — 00:05 F91176 Frontier Airlines
Seattle — Denver
10h 20m stop
11:40 — 16:59 F9688 Frontier Airlines
Denver — Washington D.C.
16h 23m
including layover
Find flight
from$153
22:08 — 12:09
+1 day
20:19 — 00:05 F91176 Frontier Airlines
Seattle — Denver
4h 48m stop
06:45 — 12:10 F9686 Frontier Airlines
Denver — Washington D.C.
11h 1m
including layover
Find flight
from$98
22:08 — 21:59
+1 day
20:19 — 00:05 F91176 Frontier Airlines
Seattle — Denver
14h 36m stop
16:38 — 21:58 F9690 Frontier Airlines
Denver — Washington D.C.
20h 51m
including layover
Find flight
from$98
23:17 — 10:31
+1 day
22:36 — 06:43 UA341 United Airlines
Seattle — Newark
1h 25m stop
09:00 — 10:29 UA4444 United Airlines
Newark — Washington D.C.
8h 14m
including layover
Find flight
from$192
23:17 — 12:22
+1 day
22:36 — 06:43 UA341 United Airlines
Seattle — Newark
3h 25m stop
10:59 — 12:22 UA4172 United Airlines
Newark — Washington D.C.
10h 5m
including layover
Find flight
from$192
06:15 — 20:40
06:15 — 09:02 UA1571 United Airlines
Seattle — Los Angeles
1h 13m stop
10:15 — 15:36 UA1571 United Airlines
Los Angeles — Houston
1h 4m stop
16:40 — 20:40 UA1788 United Airlines
Houston — Washington D.C.
11h 25m
including layover
Find flight
from$197
*Departure and arrival times - local. Updated on December 22, 2024

Flight Information

Below we will explain in detail what the flights cost on the destination from Seattle to Washington D.C. depends on and how to choose the most interesting flight option for you.

Distance between Seattle and Washington D.C. is 3735 miles. Time difference between the cities is 3h. Airplanes depart 05:00 to 23:59 from 3 Seattle airports and arrive 05:00 to 23:59 to 2 Washington D.C. airports. Average flight time is 4h 53m.

  • The fastest flight 4h 52m
  • Average flight time 4h 53m
  • The earliest flight 05:00
  • The latest flight 23:59
  • Distance 2321 ml

The cheapest months to travel to Washington D.C. are november (from 66 $), december (from 68 $), february (from 81 $).

The most expensive months are january (from 87 $), february (from 81 $), december (from 68 $).

What is the lowest airfare Seattle to Washington D.C.?

The cheapest plane ticket found by our users is $81. This airfare is for economy class on one-way F93406 flight by Frontier Airlines for February 21, 2025 which leaves Seattle-Tacoma Intl in Seattle at 09:37 am and arrives at Washington D.C. Ronald Reagan at 21:59.

Economy class
$81
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Business class
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First class
?
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Popular Airlines on the Route

The flight Seattle — Washington D.C. is served by 4 regular airlines and 1 low-cost airline. Most of the flights on this route are operated by Alaska Airlines - 20 departures per week at the price of from $ 151 . And the most expensive tickets are offered by Turkish Airlines airline - from $ 1977.

Direct flights

There are 4 nonstop flights on the route. The fastest direct flight is AS307 by Alaska Airlines takes 4h 52m and the cheapest is F93406 by Frontier Airlines for $151.

See more direct flights

Connecting Flights

There are 89 flights with layovers on the route. The fastest connecting flight is AS3362 by Alaska Airlines takes 6h 35m and the cheapest is F93406 by Frontier Airlines for $81.

See more connecting flights

Airports

You can fly from Seattle to Washington D.C. from 3 airports (Boeing Field International Airport, Seattle-Tacoma Intl, Kenmore Air Harbor SPB).

Seattle airports

  • Boeing Field International Airport-BFI
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  • Seattle-Tacoma Intl-SEA
    from $81
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  • Kenmore Air Harbor SPB-LKE
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Washington D.C. airports

  • Dulles International-IAD
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  • Ronald Reagan-DCA
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How to book a plane ticket yourself?

How to book an air 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.

    To find a plane ticket, please select dates.

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