Cheap Flights from Washington D.C., DC to Seattle, WA from $78
On Cheapflightsplus.com you will find 21 direct and 144 connecting flights from Washington D.C. to Seattle. You can compare airfare deals from 8 airlines and multiple travel sites from $78, 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
Best Flights from Washington D.C. to Seattle Today
Price | Departure | Arrival | Flight Duration | Airline | Flight |
---|---|---|---|---|---|
from $108 | 18:13 Washington D.C. Dulles International | 21:00 Seattle Seattle-Tacoma Intl | 5h 47m | Hawaiian Airlines | HA4969 |
from $118 | 09:00 Washington D.C. Dulles International | 11:43 Seattle Seattle-Tacoma Intl | 5h 43m | Alaska Airlines | AS375 |
from $147 | 06:30 Washington D.C. Dulles International | 09:10 Seattle Seattle-Tacoma Intl | 5h 40m | Hawaiian Airlines | HA4967 |
from $149 | 06:30 Washington D.C. Dulles International | 09:10 Seattle Seattle-Tacoma Intl | 5h 40m | Alaska Airlines | AS308 |
from $153 | 13:05 Washington D.C. Dulles International | 15:53 Seattle Seattle-Tacoma Intl | 5h 48m | United Airlines | UA1395 |
from $178 | 17:00 Washington D.C. Ronald Reagan | 19:56 Seattle Seattle-Tacoma Intl | 5h 56m | Hawaiian Airlines | HA6703 |
from $180 | 17:00 Washington D.C. Ronald Reagan | 19:56 Seattle Seattle-Tacoma Intl | 5h 56m | Alaska Airlines | AS3 |
from $218 | 08:00 Washington D.C. Ronald Reagan | 10:39 Seattle Seattle-Tacoma Intl | 5h 39m | Hawaiian Airlines | HA6701 |
from $220 | 08:00 Washington D.C. Ronald Reagan | 10:39 Seattle Seattle-Tacoma Intl | 5h 39m | Alaska Airlines | AS1 |
from $225 | 08:45 Washington D.C. Dulles International | 11:35 Seattle Seattle-Tacoma Intl | 5h 50m | United Airlines | UA1366 |
from $78 | 07:40 Washington D.C. Dulles International | 14:11 Seattle Seattle-Tacoma Intl | 9h 31m layover 1h 34m - Las Vegas | Frontier Airlines | F94277 F92407 |
from $78 | 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 $91 | 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 $96 | 18:00 Washington D.C. Ronald Reagan | 23:42 Seattle Seattle-Tacoma Intl | 8h 42m layover 1h 31m - Denver | Frontier Airlines | F9689 F94545 |
from $106 | 07:00 Washington D.C. Ronald Reagan | 23:42 Seattle Seattle-Tacoma Intl | 19h 42m layover 12h 40m - Denver | Frontier Airlines | F9685 F94545 |
from $111 | 17:25 Washington D.C. Dulles International | 23:44 Seattle Seattle-Tacoma Intl | 9h 19m layover 0h 53m - San Diego | Hawaiian Airlines | HA4966 HA6533 |
Flight Schedule Washington D.C. (District of Columbia) to Seattle (Washington)
Departure | Arrival | Flight Details | Flight Duration | Price |
---|---|---|---|---|
06:30 — 09:10
|
06:30 — 09:10
HA4967
Hawaiian Airlines
Washington D.C. — Seattle
|
5h 40m |
Find flight
from$147 |
|
06:30 — 09:10
|
06:30 — 09:10
AS308
Alaska Airlines
Washington D.C. — Seattle
|
5h 40m |
Find flight
from$149 |
|
08:00 — 10:39
|
08:00 — 10:39
HA6701
Hawaiian Airlines
Washington D.C. — Seattle
|
5h 39m |
Find flight
from$218 |
|
08:00 — 10:39
|
08:00 — 10:39
AS1
Alaska Airlines
Washington D.C. — Seattle
|
5h 39m |
Find flight
from$220 |
|
08:45 — 11:35
|
08:45 — 11:35
UA2665
United Airlines
Washington D.C. — Seattle
|
5h 50m |
Find flight
from$153 |
|
08:45 — 11:35
|
08:45 — 11:35
UA1366
United Airlines
Washington D.C. — Seattle
|
5h 50m |
Find flight
from$225 |
|
09:00 — 11:43
|
09:00 — 11:43
AS375
Alaska Airlines
Washington D.C. — Seattle
|
5h 43m |
Find flight
from$118 |
|
09:00 — 11:50
|
09:00 — 11:50
UA1734
United Airlines
Washington D.C. — Seattle
|
5h 50m |
Find flight
from$153 |
|
09:00 — 11:39
|
09:00 — 11:39
HA4968
Hawaiian Airlines
Washington D.C. — Seattle
|
5h 39m |
Find flight
from$186 |
|
09:00 — 11:39
|
09:00 — 11:39
AS396
Alaska Airlines
Washington D.C. — Seattle
|
5h 39m |
Find flight
from$189 |
|
13:05 — 15:53
|
13:05 — 15:53
UA1395
United Airlines
Washington D.C. — Seattle
|
5h 48m |
Find flight
from$153 |
|
17:00 — 19:56
|
17:00 — 19:56
HA6703
Hawaiian Airlines
Washington D.C. — Seattle
|
5h 56m |
Find flight
from$178 |
|
17:00 — 19:56
|
17:00 — 19:56
AS3
Alaska Airlines
Washington D.C. — Seattle
|
5h 56m |
Find flight
from$180 |
|
17:55 — 20:48
|
17:55 — 20:48
UA326
United Airlines
Washington D.C. — Seattle
|
5h 53m |
Find flight
from$153 |
|
18:13 — 21:00
|
18:13 — 21:00
HA4969
Hawaiian Airlines
Washington D.C. — Seattle
|
5h 47m |
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from$108 |
|
18:13 — 21:00
|
18:13 — 21:00
AS406
Alaska Airlines
Washington D.C. — Seattle
|
5h 47m |
Find flight
from$118 |
|
18:15 — 21:00
|
18:15 — 21:00
HA4836
Hawaiian Airlines
Washington D.C. — Seattle
|
5h 45m |
Find flight
from$186 |
|
18:15 — 21:00
|
18:15 — 21:00
AS351
Alaska Airlines
Washington D.C. — Seattle
|
5h 45m |
Find flight
from$189 |
|
22:06 — 00:56
+1 day
|
22:06 — 00:56
UA716
United Airlines
Washington D.C. — Seattle
|
5h 50m |
Find flight
from$153 |
|
22:09 — 00:59
+1 day
|
22:09 — 00:59
UA2713
United Airlines
Washington D.C. — Seattle
|
5h 50m |
Find flight
from$153 |
|
22:09 — 00:59
+1 day
|
22:09 — 00:59
UA2136
United Airlines
Washington D.C. — Seattle
|
5h 50m |
Find flight
from$225 |
|
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$82 |
|
07:40 — 14:11
|
07:25 — 09:40
F94277
Frontier Airlines
Washington D.C. — Las Vegas
1h 34m stop
11:19 — 14:16
F92407
Frontier Airlines
Las Vegas — Seattle
|
9h 31m including layover |
Find flight
from$78 |
|
08:59 — 15:10
|
08:59 — 11:20
HA7211
Hawaiian Airlines
Washington D.C. — San Diego
52m stop
12:12 — 15:10
HA6535
Hawaiian Airlines
San Diego — Seattle
|
9h 11m including layover |
Find flight
from$152 |
|
08:59 — 16:45
|
08:59 — 11:20
HA7211
Hawaiian Airlines
Washington D.C. — San Diego
2h 25m stop
13:45 — 16:45
HA6532
Hawaiian Airlines
San Diego — Seattle
|
10h 46m including layover |
Find flight
from$152 |
|
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$137 |
|
12:59 — 19:14
|
12:59 — 15:14
UA1292
United Airlines
Washington D.C. — Houston
1h 11m stop
16:25 — 19:14
UA774
United Airlines
Houston — Seattle
|
9h 15m including layover |
Find flight
from$151 |
|
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$91 |
|
13:00 — 23:42
|
13:00 — 15:10
F9687
Frontier Airlines
Washington D.C. — Denver
6h 37m stop
21:36 — 23:44
F94545
Frontier Airlines
Denver — Seattle
|
13h 42m including layover |
Find flight
from$100 |
|
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 |
|
15:46 — 22:50
|
12:49 — 14:36
SY224
Sun Country Airlines
Washington D.C. — Minneapolis
3h 36m stop
21:00 — 22:45
SY289
Sun Country Airlines
Minneapolis — Seattle
|
10h 4m including layover |
Find flight
from$159 |
|
17:25 — 23:44
|
17:25 — 19:52
HA4966
Hawaiian Airlines
Washington D.C. — San Diego
53m stop
20:45 — 23:44
HA6533
Hawaiian Airlines
San Diego — Seattle
|
9h 19m including layover |
Find flight
from$111 |
|
17:25 — 23:44
|
17:25 — 19:52
AS507
Alaska Airlines
Washington D.C. — San Diego
53m stop
20:45 — 23:44
AS1110
Alaska Airlines
San Diego — Seattle
|
9h 19m including layover |
Find flight
from$118 |
|
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$78 |
|
18:00 — 23:42
|
18:00 — 20:04
F9689
Frontier Airlines
Washington D.C. — Denver
1h 31m stop
21:36 — 23:44
F94545
Frontier Airlines
Denver — Seattle
|
8h 42m including layover |
Find flight
from$96 |
|
19:00 — 23:59
|
19:00 — 20:16
UA1193
United Airlines
Washington D.C. — Chicago
1h stop
21:16 — 23:59
UA2200
United Airlines
Chicago — Seattle
|
7h 59m including layover |
Find flight
from$151 |
|
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$141 |
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 39m
- 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 104 $), july (from 117 $), may (from 123 $).
The most expensive months are december (from 283 $), january (from 218 $), february (from 182 $).
What is the lowest airfare Washington D.C. to Seattle?
The cheapest plane ticket found by our users is $78. This airfare is for economy class on one-way F9689 flight by Frontier Airlines for June 6, 2025 which leaves Ronald Reagan in Washington D.C. at 18:00 am and arrives at Seattle Seattle-Tacoma Intl at 00:34.
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 - 21 departures per week at the price of from $ 118 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 4046.
Direct flights
There are 21 nonstop flights on the route. The fastest direct flight is HA4968 by Hawaiian Airlines takes 5h 39m and the cheapest is F9689 by Frontier Airlines for $108.
- AS - Alaska Airlinesfrom $118Find
- HA - Hawaiian Airlinesfrom $108Find
- UA - United Airlinesfrom $153Find
Connecting Flights
There are 144 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 $78.
- AS - Alaska Airlinesfrom $118Find
- F9 - Frontier Airlinesfrom $78Find
- FI - Icelandairfrom $741Find
- SY - Sun Country Airlinesfrom $132Find
- TK - Turkish Airlinesfrom $1964Find
- HA - Hawaiian Airlinesfrom $111Find
- UA - United Airlinesfrom $151Find
- G4 - Allegiant Airfrom $141Find
Airports
You can fly from Washington D.C. to Seattle from 2 airports (Dulles International, Ronald Reagan).
Washington D.C. airports
- Dulles International-IADfrom $78Find
- Ronald Reagan-DCAfrom $78Find
Seattle airports
- Boeing Field International Airport-BFIFind
- Seattle-Tacoma Intl-SEAFind
- Kenmore Air Harbor SPB-LKEFind
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.
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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.
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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»
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