Cheap Flights from Washington D.C., DC to Seattle, WA from $88

One way Round trip

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Return flight: Seattle – Washington D.C.

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On Cheapflightsplus.com you will find 18 direct and 153 connecting flights from Washington D.C. to Seattle. You can compare airfare deals from 8 airlines and multiple travel sites from $88, 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: $88 (one-way), $151 (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 $88. The fastest direct flight takes 5h 38m and the fastest connecting – 7h 22m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $100 Find flight	07:00 Washington D.C. Dulles International	09:38 Seattle Seattle-Tacoma Intl	5h 38m	Hawaiian Airlines	HA4967
from $102 Find flight	07:00 Washington D.C. Dulles International	09:38 Seattle Seattle-Tacoma Intl	5h 38m	Alaska Airlines	AS351
from $115 Find flight	09:00 Washington D.C. Dulles International	11:38 Seattle Seattle-Tacoma Intl	5h 38m	Hawaiian Airlines	HA4968
from $119 Find flight	18:13 Washington D.C. Dulles International	21:00 Seattle Seattle-Tacoma Intl	5h 47m	Alaska Airlines	AS406
from $138 Find flight	06:30 Washington D.C. Dulles International	09:10 Seattle Seattle-Tacoma Intl	5h 40m	Alaska Airlines	AS308
from $138 Find flight	13:05 Washington D.C. Dulles International	15:51 Seattle Seattle-Tacoma Intl	5h 46m	United Airlines	UA1914
from $217 Find flight	08:00 Washington D.C. Ronald Reagan	10:39 Seattle Seattle-Tacoma Intl	5h 39m	Alaska Airlines	AS1
from $88 Find flight	18:00 Washington D.C. Ronald Reagan	00:34+1 день Seattle Seattle-Tacoma Intl	9h 34m layover 2h 24m - Denver	Frontier Airlines	F9689 F93405
from $92 Find flight	13:00 Washington D.C. Ronald Reagan	00:34+1 день Seattle Seattle-Tacoma Intl	14h 34m layover 7h 30m - Denver	Frontier Airlines	F9687 F93405
from $92 Find flight	07:00 Washington D.C. Ronald Reagan	00:34+1 день Seattle Seattle-Tacoma Intl	20h 34m layover 13h 33m - Denver	Frontier Airlines	F9685 F93405
from $98 Find flight	13:00 Washington D.C. Ronald Reagan	20:44 Seattle Seattle-Tacoma Intl	10h 44m layover 3h 25m - Denver	Frontier Airlines	F9687 F94545
from $98 Find flight	07:00 Washington D.C. Ronald Reagan	20:44 Seattle Seattle-Tacoma Intl	16h 44m layover 9h 24m - Denver	Frontier Airlines	F9685 F94545
from $104 Find flight	17:49 Washington D.C. Ronald Reagan	22:29 Seattle Seattle-Tacoma Intl	7h 40m layover 1h 0m - Portland	Hawaiian Airlines	HA6709 HA6414
from $110 Find flight	08:59 Washington D.C. Ronald Reagan	15:04 Seattle Seattle-Tacoma Intl	9h 5m layover 0h 33m - San Diego	Alaska Airlines	AS15 AS1099
from $142 Find flight	10:13 Washington D.C. Dulles International	16:25+1 день Seattle Seattle-Tacoma Intl	33h 12m layover 4h 2m - Austin 19h 57m - Las Vegas	Allegiant Air	G4252 NK1656 NK1681
from $163 Find flight	12:46 Washington D.C. Dulles International	16:25+1 день Seattle Seattle-Tacoma Intl	30h 39m layover 18h 6m - Minneapolis 3h 49m - Las Vegas	Sun Country Airlines	SY224 SY103 NK1681

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on June 12, 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
06:30 — 09:10	06:30 — 09:10 AS308 Alaska Airlines Washington D.C. — Seattle	5h 40m	Find flight from$138
07:00 — 09:38	07:00 — 09:38 HA4967 Hawaiian Airlines Washington D.C. — Seattle	5h 38m	Find flight from$100
07:00 — 09:38	07:00 — 09:38 AS351 Alaska Airlines Washington D.C. — Seattle	5h 38m	Find flight from$102
08:00 — 10:39	08:00 — 10:39 AS1 Alaska Airlines Washington D.C. — Seattle	5h 39m	Find flight from$217
09:00 — 11:38	09:00 — 11:38 AS375 Alaska Airlines Washington D.C. — Seattle	5h 38m	Find flight from$102
09:00 — 11:38	09:00 — 11:38 HA4968 Hawaiian Airlines Washington D.C. — Seattle	5h 38m	Find flight from$115
09:00 — 11:50	09:00 — 11:50 UA1734 United Airlines Washington D.C. — Seattle	5h 50m	Find flight from$154
09:00 — 11:50	09:00 — 11:50 UA2729 United Airlines Washington D.C. — Seattle	5h 50m	Find flight from$154
13:05 — 15:51	13:05 — 15:51 UA1914 United Airlines Washington D.C. — Seattle	5h 46m	Find flight from$138
13:05 — 15:53	13:05 — 15:53 UA1395 United Airlines Washington D.C. — Seattle	5h 48m	Find flight from$154
17:06 — 19:56	17:06 — 19:56 HA6703 Hawaiian Airlines Washington D.C. — Seattle	5h 50m	Find flight from$100
17:06 — 19:56	17:06 — 19:56 AS3 Alaska Airlines Washington D.C. — Seattle	5h 50m	Find flight from$102
17:55 — 20:42	17:55 — 20:42 UA326 United Airlines Washington D.C. — Seattle	5h 47m	Find flight from$138
18:09 — 20:51	18:09 — 20:51 HA4836 Hawaiian Airlines Washington D.C. — Seattle	5h 42m	Find flight from$100
18:09 — 20:51	18:09 — 20:51 AS416 Alaska Airlines Washington D.C. — Seattle	5h 42m	Find flight from$103
18:13 — 21:00	18:13 — 21:00 HA4969 Hawaiian Airlines Washington D.C. — Seattle	5h 47m	Find flight from$108
18:13 — 21:00	18:13 — 21:00 AS406 Alaska Airlines Washington D.C. — Seattle	5h 47m	Find flight from$119
22:06 — 00:56 +1 day	22:06 — 00:56 UA716 United Airlines Washington D.C. — Seattle	5h 50m	Find flight from$153
06:35 — 11:31	06:35 — 07:46 UA1349 United Airlines Washington D.C. — Chicago 59m stop 08:45 — 11:31 UA1620 United Airlines Chicago — Seattle	7h 56m including layover	Find flight from$150
07:00 — 00:34 +1 day	07:00 — 09:02 F9685 Frontier Airlines Washington D.C. — Denver 13h 33m stop 22:29 — 00:37 F93405 Frontier Airlines Denver — Seattle	20h 34m including layover	Find flight from$92
07:00 — 20:44	07:00 — 09:02 F9685 Frontier Airlines Washington D.C. — Denver 9h 24m stop 21:36 — 23:44 F94545 Frontier Airlines Denver — Seattle	16h 44m including layover	Find flight from$98
08:59 — 15:04	08:59 — 11:27 HA7211 Hawaiian Airlines Washington D.C. — San Diego 33m stop 12:00 — 15:04 HA4781 Hawaiian Airlines San Diego — Seattle	9h 5m including layover	Find flight from$104
08:59 — 17:34	08:59 — 11:27 HA7211 Hawaiian Airlines Washington D.C. — San Diego 3h 3m stop 14:30 — 17:34 HA6536 Hawaiian Airlines San Diego — Seattle	11h 35m including layover	Find flight from$104
10:25 — 15:52	10:25 — 12:09 UA1817 United Airlines Washington D.C. — Denver 1h 47m stop 13:56 — 15:52 UA594 United Airlines Denver — Seattle	8h 27m including layover	Find flight from$148
11:03 — 17:26	11:03 — 13:17 UA1928 United Airlines Washington D.C. — Houston 1h 23m stop 14:40 — 17:26 UA686 United Airlines Houston — Seattle	9h 23m including layover	Find flight from$149
12:35 — 18:49	12:35 — 15:23 UA1434 United Airlines Washington D.C. — San Francisco 1h 12m stop 16:35 — 18:49 UA1636 United Airlines San Francisco — Seattle	9h 14m including layover	Find flight from$150
12:46 — 20:56	12:46 — 14:24 SY224 Sun Country Airlines Washington D.C. — Minneapolis 4h 42m stop 19:06 — 20:56 SY1639 Sun Country Airlines Minneapolis — Seattle	11h 10m including layover	Find flight from$138
13:00 — 00:34 +1 day	13:00 — 14:57 F9687 Frontier Airlines Washington D.C. — Denver 7h 30m stop 22:29 — 00:37 F93405 Frontier Airlines Denver — Seattle	14h 34m including layover	Find flight from$92
13:00 — 20:44	13:00 — 15:10 F9687 Frontier Airlines Washington D.C. — Denver 3h 25m stop 21:36 — 23:44 F94545 Frontier Airlines Denver — Seattle	10h 44m including layover	Find flight from$98
14:00 — 18:49	14:00 — 15:13 UA1801 United Airlines Washington D.C. — Chicago 57m stop 16:10 — 18:49 UA2278 United Airlines Chicago — Seattle	7h 49m including layover	Find flight from$150
14:59 — 21:16	14:59 — 17:21 UA1381 United Airlines Washington D.C. — Houston 1h 9m stop 18:30 — 21:16 UA1544 United Airlines Houston — Seattle	9h 17m including layover	Find flight from$150
15:46 — 08:02 +1 day	12:40 — 14:18 SY224 Sun Country Airlines Washington D.C. — Minneapolis 12h 48m stop 06:12 — 08:02 SY281 Sun Country Airlines Minneapolis — Seattle	19h 16m including layover	Find flight from$132
15:48 — 21:17	15:48 — 17:40 UA2692 United Airlines Washington D.C. — Denver 1h 40m stop 19:20 — 21:17 UA299 United Airlines Denver — Seattle	8h 29m including layover	Find flight from$148
16:00 — 21:22	16:00 — 17:52 UA2852 United Airlines Washington D.C. — Denver 1h 33m stop 19:25 — 21:22 UA1729 United Airlines Denver — Seattle	8h 22m including layover	Find flight from$150
16:47 — 22:52	16:47 — 19:09 UA2456 United Airlines Washington D.C. — Houston 56m stop 20:05 — 22:52 UA2456 United Airlines Houston — Seattle	9h 5m including layover	Find flight from$149
18:00 — 00:34 +1 day	18:00 — 20:08 F9689 Frontier Airlines Washington D.C. — Denver 2h 24m stop 17:17 — 19:27 F93405 Frontier Airlines Denver — Seattle	9h 34m including layover	Find flight from$88
18:00 — 23:02	18:00 — 20:04 F9689 Frontier Airlines Washington D.C. — Denver 56m stop 21:36 — 23:44 F94545 Frontier Airlines Denver — Seattle	8h 2m including layover	Find flight from$96
10:13 — 16:25 +1 day	10:13 — 12:32 G4252 Allegiant Air Washington D.C. — Austin 4h 2m stop 16:34 — 17:43 NK1656 Spirit Airlines Austin — Las Vegas 19h 57m stop 13:40 — 16:25 NK1681 Spirit Airlines Las Vegas — Seattle	33h 12m including layover	Find flight from$142

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

*Departure and arrival times - local. Updated on June 12, 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 06:00 to 23:15 from 2 Washington D.C. airports and arrive 06:00 to 23:15 to 3 Seattle airports. Average flight time is 5h 47m.

The fastest flight 5h 38m
Average flight time 5h 47m
The earliest flight 06:00
The latest flight 23:15
Distance 2321 ml

The cheapest months to travel to Seattle are june (from 105 $), july (from 118 $), august (from 122 $).

The most expensive months are december (from 285 $), january (from 219 $), february (from 184 $).

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

The cheapest plane ticket found by our users is $88. This airfare is for economy class on one-way F9689 flight by Frontier Airlines for July 14, 2025 which leaves Ronald Reagan in Washington D.C. at 18:00 am and arrives at Seattle Seattle-Tacoma Intl at 00:34.

Economy class

$88

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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 8 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 30 departures per week at the price of from $ 102 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 4071.

Direct flights

There are 18 nonstop flights on the route. The fastest direct flight is HA4967 by Hawaiian Airlines takes 5h 38m and the cheapest is F9689 by Frontier Airlines for $100.

AS - Alaska Airlines

from $102

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HA - Hawaiian Airlines

from $100

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UA - United Airlines

from $138

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Connecting Flights

There are 153 flights with layovers on the route. The fastest connecting flight is SY224 by Sun Country Airlines takes 7h 22m and the cheapest is F9689 by Frontier Airlines for $88.

AS - Alaska Airlines

from $110

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F9 - Frontier Airlines

from $88

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FI - Icelandair

from $669

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SY - Sun Country Airlines

from $132

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TK - Turkish Airlines

from $1976

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HA - Hawaiian Airlines

from $104

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UA - United Airlines

from $148

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G4 - Allegiant Air

from $142

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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 $100
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Ronald Reagan-DCA

from $88
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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 8 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. — Seattle

from $57

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Washington D.C. — Boston

from $73

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Washington D.C. — Miami

from $70

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Washington D.C. — Chicago

from $65

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Washington D.C. — Orlando

from $76

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Washington D.C. — Atlanta

from $70

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Washington D.C. — Las Vegas

from $70

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Washington D.C. — Los Angeles

from $57

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Washington D.C. — Tampa

from $78

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Washington D.C. — Nashville

from $68

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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. — London

from $77

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Washington D.C. — Paris

from $63

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Washington D.C. — Toronto

from $72

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Washington D.C. — Cancun

from $66

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Washington D.C. — Tokyo

from $54

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Washington D.C. — Montreal

from $74

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Washington D.C. — Aruba

from $69

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Washington D.C. — Dubai

from $69

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Washington D.C. — Dublin

from $65

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Washington D.C. — Madrid

from $72

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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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