Cheap Flights from Washington D.C., DC to Seattle, WA from $151

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Return flight: Seattle – Washington D.C.

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On Cheapflightsplus.com you will find 4 direct and 17 connecting flights from Washington D.C. to Seattle. You can compare airfare deals from 2 airlines and multiple travel sites from $151, book and save on cheap plane tickets and last minute offers. Also check out WAS-SEA flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Washington D.C. to Seattle 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: $151 (one-way), $259 (round-trip).

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Best Flights from Washington D.C. to Seattle Today

Take a look at the list of non stop flights and flights with layovers from Washington D.C. to Seattle with the lowest price of $151. The fastest direct flight takes 5h 55m and the fastest connecting – 7h 42m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $151 Find flight	07:00 Washington D.C. Dulles International	09:56 Seattle Seattle-Tacoma Intl	5h 56m	Alaska Airlines	AS308
from $204 Find flight	17:19 Washington D.C. Dulles International	20:19 Seattle Seattle-Tacoma Intl	6h 0m	United Airlines	UA1730
from $238 Find flight	17:39 Washington D.C. Ronald Reagan	20:34 Seattle Seattle-Tacoma Intl	5h 55m	Alaska Airlines	AS3
from $238 Find flight	08:00 Washington D.C. Ronald Reagan	10:58 Seattle Seattle-Tacoma Intl	5h 58m	Alaska Airlines	AS1
from $214 Find flight	18:17 Washington D.C. Dulles International	00:55+1 день Seattle Seattle-Tacoma Intl	9h 38m layover 1h 15m - San Francisco	United Airlines	UA1666 UA1743
from $246 Find flight	17:18 Washington D.C. Dulles International	09:23+1 день Seattle Seattle-Tacoma Intl	19h 5m layover 9h 56m - San Diego	Alaska Airlines	AS507 AS1245
from $247 Find flight	18:00 Washington D.C. Ronald Reagan	22:42 Seattle Seattle-Tacoma Intl	7h 42m layover 0h 36m - Chicago	United Airlines	UA2148 UA2211
from $247 Find flight	06:30 Washington D.C. Dulles International	14:22 Seattle Seattle-Tacoma Intl	10h 52m layover 2h 24m - San Francisco	United Airlines	UA1095 UA419
from $247 Find flight	06:30 Washington D.C. Dulles International	15:54 Seattle Seattle-Tacoma Intl	12h 24m layover 3h 55m - San Francisco	United Airlines	UA1095 UA1387
from $279 Find flight	18:40 Washington D.C. Ronald Reagan	12:41+1 день Seattle Seattle-Tacoma Intl	21h 1m layover 13h 55m - Portland	Alaska Airlines	AS9 AS970
from $290 Find flight	06:25 Washington D.C. Ronald Reagan	11:44 Seattle Seattle-Tacoma Intl	8h 19m layover 1h 15m - Chicago	United Airlines	UA1793 UA1705
from $290 Find flight	17:15 Washington D.C. Dulles International	22:45 Seattle Seattle-Tacoma Intl	8h 30m layover 1h 20m - Denver	United Airlines	UA1728 UA2651
from $290 Find flight	13:00 Washington D.C. Ronald Reagan	18:45 Seattle Seattle-Tacoma Intl	8h 45m layover 1h 44m - Chicago	United Airlines	UA1685 UA2278
from $290 Find flight	17:59 Washington D.C. Ronald Reagan	00:55+1 день Seattle Seattle-Tacoma Intl	9h 56m layover 1h 12m - San Francisco	United Airlines	UA698 UA1743
from $290 Find flight	18:40 Washington D.C. Ronald Reagan	10:37+1 день Seattle Seattle-Tacoma Intl	18h 57m layover 11h 55m - Portland	Alaska Airlines	AS9 AS3362
from $332 Find flight	22:20 Washington D.C. Dulles International	09:49+1 день Seattle Seattle-Tacoma Intl	14h 29m layover 7h 16m - Denver	United Airlines	UA1580 UA204

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on February 05, 2025

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

Full flight schedule will help you in detecting at what time planes fly from Washington D.C. to Seattle. 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
07:00 — 09:56	07:00 — 09:56 AS308 Alaska Airlines Washington D.C. — Seattle	5h 56m	Find flight from$151
08:00 — 10:58	08:00 — 10:58 AS1 Alaska Airlines Washington D.C. — Seattle	5h 58m	Find flight from$238
17:19 — 20:19	17:19 — 20:19 UA1730 United Airlines Washington D.C. — Seattle	6h	Find flight from$204
17:39 — 20:34	17:39 — 20:34 AS3 Alaska Airlines Washington D.C. — Seattle	5h 55m	Find flight from$238
06:25 — 11:44	06:25 — 07:45 UA1793 United Airlines Washington D.C. — Chicago 1h 15m stop 09:00 — 11:44 UA1705 United Airlines Chicago — Seattle	8h 19m including layover	Find flight from$290
06:30 — 14:22	06:30 — 09:40 UA1095 United Airlines Washington D.C. — San Francisco 2h 24m stop 12:04 — 14:22 UA419 United Airlines San Francisco — Seattle	10h 52m including layover	Find flight from$247
06:30 — 15:54	06:30 — 09:40 UA1095 United Airlines Washington D.C. — San Francisco 3h 55m stop 13:35 — 15:54 UA1387 United Airlines San Francisco — Seattle	12h 24m including layover	Find flight from$247
11:30 — 18:45	11:30 — 13:07 UA3520 United Airlines Washington D.C. — Chicago 2h 58m stop 16:05 — 18:45 UA2278 United Airlines Chicago — Seattle	10h 15m including layover	Find flight from$333
12:45 — 18:45	12:45 — 14:03 UA1709 United Airlines Washington D.C. — Chicago 2h 2m stop 16:05 — 18:45 UA2278 United Airlines Chicago — Seattle	9h including layover	Find flight from$333
13:00 — 18:45	13:00 — 14:21 UA1685 United Airlines Washington D.C. — Chicago 1h 44m stop 16:05 — 18:45 UA2278 United Airlines Chicago — Seattle	8h 45m including layover	Find flight from$290
16:23 — 00:55 +1 day	16:23 — 19:38 UA1318 United Airlines Washington D.C. — San Francisco 2h 57m stop 22:35 — 00:55 UA1743 United Airlines San Francisco — Seattle	11h 32m including layover	Find flight from$333
17:00 — 22:42	17:00 — 18:21 UA2362 United Airlines Washington D.C. — Chicago 1h 38m stop 19:59 — 22:42 UA2211 United Airlines Chicago — Seattle	8h 42m including layover	Find flight from$333
17:15 — 22:45	17:15 — 19:24 UA1728 United Airlines Washington D.C. — Denver 1h 20m stop 20:44 — 22:45 UA2651 United Airlines Denver — Seattle	8h 30m including layover	Find flight from$290
17:18 — 09:23 +1 day	17:10 — 19:47 AS507 Alaska Airlines Washington D.C. — San Diego 9h 56m stop 06:15 — 09:24 AS1245 Alaska Airlines San Diego — Seattle	19h 5m including layover	Find flight from$246
17:59 — 00:55 +1 day	17:59 — 21:23 UA698 United Airlines Washington D.C. — San Francisco 1h 12m stop 22:35 — 00:55 UA1743 United Airlines San Francisco — Seattle	9h 56m including layover	Find flight from$290
18:00 — 22:42	18:05 — 19:23 UA2148 United Airlines Washington D.C. — Chicago 36m stop 20:04 — 22:53 UA2211 United Airlines Chicago — Seattle	7h 42m including layover	Find flight from$247
18:17 — 00:55 +1 day	18:17 — 21:20 UA1666 United Airlines Washington D.C. — San Francisco 1h 15m stop 22:35 — 00:55 UA1743 United Airlines San Francisco — Seattle	9h 38m including layover	Find flight from$214
18:40 — 12:41 +1 day	18:40 — 21:45 AS9 Alaska Airlines Washington D.C. — Portland 13h 55m stop 11:40 — 12:41 AS970 Alaska Airlines Portland — Seattle	21h 1m including layover	Find flight from$279
18:40 — 10:37 +1 day	18:40 — 21:45 AS9 Alaska Airlines Washington D.C. — Portland 11h 55m stop 09:40 — 10:37 AS3362 Alaska Airlines Portland — Seattle	18h 57m including layover	Find flight from$290
22:20 — 09:49 +1 day	22:20 — 00:30 UA1580 United Airlines Washington D.C. — Denver 7h 16m stop 07:46 — 09:49 UA204 United Airlines Denver — Seattle	14h 29m including layover	Find flight from$332
06:25 — 15:54	06:25 — 07:45 UA1793 United Airlines Washington D.C. — Chicago 1h stop 08:45 — 11:40 UA1387 United Airlines Chicago — San Francisco 1h 55m stop 13:35 — 15:54 UA1387 United Airlines San Francisco — Seattle	12h 29m including layover	Find flight from$339

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

*Departure and arrival times - local. Updated on February 5, 2025

Flight Information

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

Distance between Washington D.C. and Seattle is 3735 miles. Time difference between the cities is 3h. Airplanes depart 06:25 to 22:20 from 2 Washington D.C. airports and arrive 06:25 to 22:20 to 3 Seattle airports. Average flight time is 5h 57m.

The fastest flight 5h 55m
Average flight time 5h 57m
The earliest flight 06:25
The latest flight 22:20
Distance 2321 ml

The cheapest months to travel to Seattle are february (from 151 $), january (from 192 $), december (from 257 $).

The most expensive months are november (from 287 $), december (from 257 $), january (from 192 $).

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

The cheapest plane ticket found by our users is $151. This airfare is for economy class on one-way AS308 flight by Alaska Airlines for February 21, 2025 which leaves Dulles International in Washington D.C. at 07:00 am and arrives at Seattle Seattle-Tacoma Intl at 09:56.

Economy class

$151

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Business class

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First class

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Popular Airlines on the Route

The flight Washington D.C. — Seattle is served by 2 regular airlines . Most of the flights on this route are operated by Alaska Airlines - 6 departures per week at the price of from $ 151 . And the most expensive tickets are offered by United Airlines airline - from $ 339.

Direct flights

There are 4 nonstop flights on the route. The fastest direct flight is AS3 by Alaska Airlines takes 5h 55m and the cheapest is AS308 by Alaska Airlines for $151.

AS - Alaska Airlines

from $151

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UA - United Airlines

from $204

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Connecting Flights

There are 17 flights with layovers on the route. The fastest connecting flight is UA2148 by United Airlines takes 7h 42m and the cheapest is AS308 by Alaska Airlines for $214.

AS - Alaska Airlines

from $246

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UA - United Airlines

from $214

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Airports

You can fly from Washington D.C. to Seattle from 2 airports (Dulles International, Ronald Reagan).

Washington D.C. airports

Dulles International-IAD

from $151
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Ronald Reagan-DCA

from $238
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Seattle airports

Boeing Field International Airport-BFI

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Seattle-Tacoma Intl-SEA

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Kenmore Air Harbor SPB-LKE

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Airplanes

There are flights to Seattle from Washington D.C. by 2 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from Washington D.C.

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

Washington D.C. — Chicago

from $65

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Washington D.C. — San Francisco

from $76

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Washington D.C. — Boston

from $73

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Washington D.C. — New York

from $119

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Washington D.C. — Orlando

from $76

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Washington D.C. — Los Angeles

from $57

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Washington D.C. — Miami

from $70

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Washington D.C. — Las Vegas

from $70

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Washington D.C. — Tucson

from $69

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Washington D.C. — Minneapolis

from $79

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Top International Destinations from Washington D.C.

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.

Washington D.C. — Paris

from $63

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Washington D.C. — Mexico City

from $59

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Washington D.C. — Manchester

from $63

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Washington D.C. — Dublin

from $65

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Washington D.C. — Montreal

from $74

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Washington D.C. — Amsterdam

from $65

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Washington D.C. — London

from $77

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Washington D.C. — Toronto

from $72

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Washington D.C. — Aruba

from $69

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Washington D.C. — San Jose

from $73

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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.
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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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