Cheap Flights from Seattle, WA to Washington D.C., DC from $90

One way Round trip

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Return flight: Washington D.C. – Seattle

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On Cheapflightsplus.com you will find 16 direct and 161 connecting flights from Seattle to Washington D.C.. You can compare airfare deals from 7 airlines and multiple travel sites from $90, 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: $90 (one-way), $154 (round-trip).

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Best Flights from Seattle to Washington D.C. Today

Take a look at the list of non stop flights and flights with layovers from Seattle to Washington D.C. with the lowest price of $90. The fastest direct flight takes 4h 57m and the fastest connecting – 6h 33m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $102 Find flight	16:20 Seattle Seattle-Tacoma Intl	00:20+1 день Washington D.C. Dulles International	5h 0m	Alaska Airlines	AS348
from $117 Find flight	23:30 Seattle Seattle-Tacoma Intl	07:27+1 день Washington D.C. Dulles International	4h 57m	Hawaiian Airlines	HA6718
from $117 Find flight	13:58 Seattle Seattle-Tacoma Intl	21:59 Washington D.C. Ronald Reagan	5h 1m	Hawaiian Airlines	HA6702
from $119 Find flight	23:30 Seattle Seattle-Tacoma Intl	07:27+1 день Washington D.C. Dulles International	4h 57m	Alaska Airlines	AS367
from $138 Find flight	13:09 Seattle Seattle-Tacoma Intl	21:15 Washington D.C. Dulles International	5h 6m	United Airlines	UA2131
from $156 Find flight	08:34 Seattle Seattle-Tacoma Intl	16:43 Washington D.C. Ronald Reagan	5h 9m	Hawaiian Airlines	HA6704
from $159 Find flight	08:34 Seattle Seattle-Tacoma Intl	16:43 Washington D.C. Ronald Reagan	5h 9m	Alaska Airlines	AS4
from $176 Find flight	13:00 Seattle Seattle-Tacoma Intl	20:57 Washington D.C. Dulles International	4h 57m	United Airlines	UA2275
from $90 Find flight	06:25 Seattle Seattle-Tacoma Intl	21:57 Washington D.C. Ronald Reagan	12h 32m layover 6h 14m - Denver	Frontier Airlines	F93406 F9690
from $105 Find flight	07:00 Seattle Seattle-Tacoma Intl	20:59 Washington D.C. Ronald Reagan	10h 59m layover 3h 0m - Los Angeles	Hawaiian Airlines	HA6763 HA6706
from $109 Find flight	20:01 Seattle Seattle-Tacoma Intl	16:59+1 день Washington D.C. Ronald Reagan	17h 58m layover 11h 35m - Denver	Frontier Airlines	F91176 F9688
from $110 Find flight	09:53 Seattle Seattle-Tacoma Intl	21:59 Washington D.C. Ronald Reagan	9h 6m layover 0h 49m - San Diego	Alaska Airlines	AS1108 AS14
from $110 Find flight	07:55 Seattle Seattle-Tacoma Intl	21:29 Washington D.C. Ronald Reagan	10h 34m layover 2h 20m - San Diego	Alaska Airlines	AS1258 AS14
from $111 Find flight	07:00 Seattle Seattle-Tacoma Intl	20:59 Washington D.C. Ronald Reagan	10h 59m layover 3h 0m - Los Angeles	Alaska Airlines	AS797 AS6
from $147 Find flight	23:59 Seattle Seattle-Tacoma Intl	20:58+1 день Washington D.C. Dulles International	17h 59m layover 9h 20m - Minneapolis 1h 33m - Nashville	Sun Country Airlines	SY290 SY633 G41931
from $164 Find flight	17:30 Seattle Seattle-Tacoma Intl	11:37+1 день Washington D.C. Dulles International	15h 7m layover 4h 1m - Las Vegas 3h 12m - Minneapolis	Spirit Airlines	NK1682 SY778 SY223

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on June 10, 2025

Flight Schedule Seattle (Washington) to Washington D.C. (District of Columbia)

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	Flight Details	Flight Duration	Price
08:00 — 16:10	08:00 — 16:10 UA2217 United Airlines Seattle — Washington D.C.	5h 10m	Find flight from$138
08:00 — 16:11	08:00 — 16:11 UA1873 United Airlines Seattle — Washington D.C.	5h 11m	Find flight from$155
08:34 — 16:43	08:34 — 16:43 HA6704 Hawaiian Airlines Seattle — Washington D.C.	5h 9m	Find flight from$156
08:34 — 16:43	08:34 — 16:43 AS4 Alaska Airlines Seattle — Washington D.C.	5h 9m	Find flight from$159
09:05 — 17:09	09:05 — 17:09 AS401 Alaska Airlines Seattle — Washington D.C.	5h 4m	Find flight from$119
09:15 — 17:13	09:15 — 17:13 AS406 Alaska Airlines Seattle — Washington D.C.	4h 58m	Find flight from$119
13:00 — 20:57	13:00 — 20:57 UA2275 United Airlines Seattle — Washington D.C.	4h 57m	Find flight from$176
13:09 — 21:15	13:09 — 21:15 UA2131 United Airlines Seattle — Washington D.C.	5h 6m	Find flight from$138
13:58 — 21:59	13:58 — 21:59 HA6702 Hawaiian Airlines Seattle — Washington D.C.	5h 1m	Find flight from$117
13:58 — 21:59	13:58 — 21:59 AS2 Alaska Airlines Seattle — Washington D.C.	5h 1m	Find flight from$119
16:20 — 00:20 +1 day	16:20 — 00:20 AS348 Alaska Airlines Seattle — Washington D.C.	5h	Find flight from$102
22:05 — 06:02 +1 day	22:05 — 06:02 UA2402 United Airlines Seattle — Washington D.C.	4h 57m	Find flight from$155
22:55 — 06:58 +1 day	22:55 — 06:58 UA684 United Airlines Seattle — Washington D.C.	5h 3m	Find flight from$139
23:20 — 07:17 +1 day	23:20 — 07:17 UA2019 United Airlines Seattle — Washington D.C.	4h 57m	Find flight from$156
23:30 — 07:27 +1 day	23:30 — 07:27 HA6718 Hawaiian Airlines Seattle — Washington D.C.	4h 57m	Find flight from$117
23:30 — 07:27 +1 day	23:30 — 07:27 AS367 Alaska Airlines Seattle — Washington D.C.	4h 57m	Find flight from$119
05:07 — 16:43	05:07 — 08:48 UA2269 United Airlines Seattle — Denver 2h 27m stop 11:15 — 16:43 UA2853 United Airlines Denver — Washington D.C.	8h 36m including layover	Find flight from$146
05:25 — 16:02	05:20 — 06:17 HA6833 Hawaiian Airlines Seattle — Portland 1h 40m stop 08:00 — 16:06 HA6710 Hawaiian Airlines Portland — Washington D.C.	7h 37m including layover	Find flight from$137
06:25 — 21:57	06:25 — 10:16 F93406 Frontier Airlines Seattle — Denver 6h 14m stop 16:25 — 21:59 F9690 Frontier Airlines Denver — Washington D.C.	12h 32m including layover	Find flight from$90
06:25 — 16:57	09:19 — 13:04 F93406 Frontier Airlines Seattle — Denver 1h 18m stop 11:40 — 16:59 F9688 Frontier Airlines Denver — Washington D.C.	7h 32m including layover	Find flight from$111
07:00 — 20:59	07:00 — 09:45 HA6763 Hawaiian Airlines Seattle — Los Angeles 3h stop 12:48 — 20:59 HA6706 Hawaiian Airlines Los Angeles — Washington D.C.	10h 59m including layover	Find flight from$105
07:55 — 21:29	07:00 — 09:48 AS1258 Alaska Airlines Seattle — San Diego 2h 20m stop 13:00 — 21:05 AS14 Alaska Airlines San Diego — Washington D.C.	10h 34m including layover	Find flight from$110
08:10 — 19:19	08:10 — 10:29 HA6903 Hawaiian Airlines Seattle — San Francisco 41m stop 11:10 — 19:19 HA6980 Hawaiian Airlines San Francisco — Washington D.C.	8h 9m including layover	Find flight from$121
08:10 — 19:19	08:05 — 10:24 AS1166 Alaska Airlines Seattle — San Francisco 41m stop 11:10 — 19:19 AS434 Alaska Airlines San Francisco — Washington D.C.	8h 9m including layover	Find flight from$128
09:53 — 21:59	08:25 — 11:13 AS1108 Alaska Airlines Seattle — San Diego 49m stop 13:00 — 21:05 AS14 Alaska Airlines San Diego — Washington D.C.	9h 6m including layover	Find flight from$110
10:26 — 22:10	10:26 — 16:50 UA1005 United Airlines Seattle — Houston 1h 15m stop 18:05 — 22:10 UA1627 United Airlines Houston — Washington D.C.	8h 44m including layover	Find flight from$150
10:55 — 20:55	10:55 — 17:10 UA2671 United Airlines Seattle — Chicago 45m stop 17:55 — 20:55 UA2677 United Airlines Chicago — Washington D.C.	7h including layover	Find flight from$145
11:11 — 21:07	11:11 — 14:58 UA1049 United Airlines Seattle — Denver 42m stop 15:40 — 21:07 UA798 United Airlines Denver — Washington D.C.	6h 56m including layover	Find flight from$148
12:43 — 23:17	11:11 — 14:58 UA1969 United Airlines Seattle — Denver 1h 20m stop 17:52 — 23:20 UA2408 United Airlines Denver — Washington D.C.	7h 34m including layover	Find flight from$147
16:42 — 06:50 +1 day	16:42 — 18:53 AS590 Alaska Airlines Seattle — San Francisco 3h 50m stop 22:43 — 06:50 AS455 Alaska Airlines San Francisco — Washington D.C.	11h 8m including layover	Find flight from$128
17:35 — 05:24 +1 day	17:35 — 19:47 UA2482 United Airlines Seattle — San Francisco 1h 23m stop 21:10 — 05:24 UA2351 United Airlines San Francisco — Washington D.C.	8h 49m including layover	Find flight from$148
19:02 — 11:43 +1 day	18:18 — 23:35 SY286 Sun Country Airlines Seattle — Minneapolis 8h 2m stop 11:30 — 14:49 SY223 Sun Country Airlines Minneapolis — Washington D.C.	13h 41m including layover	Find flight from$123
19:13 — 06:50 +1 day	17:59 — 20:10 AS1318 Alaska Airlines Seattle — San Francisco 1h 21m stop 21:41 — 05:55 AS455 Alaska Airlines San Francisco — Washington D.C.	8h 37m including layover	Find flight from$128
20:01 — 21:57 +1 day	19:10 — 23:12 F91176 Frontier Airlines Seattle — Denver 16h 36m stop 16:25 — 21:59 F9690 Frontier Airlines Denver — Washington D.C.	22h 56m including layover	Find flight from$90
20:01 — 12:04 +1 day	19:10 — 23:12 F91176 Frontier Airlines Seattle — Denver 6h 46m stop 06:40 — 12:07 F9686 Frontier Airlines Denver — Washington D.C.	13h 3m including layover	Find flight from$92
22:50 — 09:19 +1 day	22:46 — 07:00 UA341 United Airlines Seattle — Newark 54m stop 08:00 — 09:22 UA4500 United Airlines Newark — Washington D.C.	7h 29m including layover	Find flight from$150

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times - local. Updated on June 10, 2025

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 00:20 to 23:59 from 3 Seattle airports and arrive 00:20 to 23:59 to 2 Washington D.C. airports. Average flight time is 5h 1m.

The fastest flight 4h 57m
Average flight time 5h 1m
The earliest flight 00:20
The latest flight 23:59
Distance 2321 ml

The cheapest months to travel to Washington D.C. are december (from 83 $), june (from 83 $), november (from 91 $).

The most expensive months are october (from 147 $), september (from 137 $), august (from 123 $).

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

The cheapest plane ticket found by our users is $90. This airfare is for economy class on one-way F93406 flight by Frontier Airlines for July 14, 2025 which leaves Seattle-Tacoma Intl in Seattle at 06:25 am and arrives at Washington D.C. Ronald Reagan at 21:57.

Economy class

$90

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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 7 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 27 departures per week at the price of from $ 102 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 3840.

Direct flights

There are 16 nonstop flights on the route. The fastest direct flight is HA6718 by Hawaiian Airlines takes 4h 57m and the cheapest is F93406 by Frontier Airlines for $102.

AS - Alaska Airlines

from $102

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HA - Hawaiian Airlines

from $117

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UA - United Airlines

from $138

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Connecting Flights

There are 161 flights with layovers on the route. The fastest connecting flight is UA747 by United Airlines takes 6h 33m and the cheapest is F93406 by Frontier Airlines for $90.

AS - Alaska Airlines

from $110

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F9 - Frontier Airlines

from $90

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SY - Sun Country Airlines

from $123

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TK - Turkish Airlines

from $881

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HA - Hawaiian Airlines

from $105

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UA - United Airlines

from $145

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NK - Spirit Airlines

from $164

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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 $90
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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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Airplanes

There are flights to Washington D.C. from Seattle by 7 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from Seattle

You may also consider searching for discounted plane tickets to some other popular places from Seattle within United States.

Seattle — Washington D.C.

from $78

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Seattle — Las Vegas

from $62

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Seattle — New York

from $180

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Seattle — Chicago

from $73

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Seattle — Phoenix

from $67

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Seattle — San Diego

from $74

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Seattle — Los Angeles

from $53

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Seattle — Denver

from $243

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Seattle — Dallas

from $72

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Seattle — Boston

from $63

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Top International Destinations from Seattle

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

Seattle — Tokyo

from $77

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Seattle — London

from $70

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Seattle — Vancouver

from $57

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Seattle — Cancun

from $63

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Seattle — Paris

from $66

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Seattle — Toronto

from $64

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Seattle — Calgary

from $76

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Seattle — Mumbai

from $80

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Seattle — Montreal

from $68

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Seattle — Amsterdam

from $64

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How to book a plane 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.
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