Find Cheap Flights from Washington to Seattle/Tacoma Intl (WAS - SEA)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Washington to Seattle/Tacoma Intl

(Round-trip)
Depart: Mon Oct 2 2017 Return: Sat Oct 7 2017 Trip spans 6 days
Frontier
Frontier
IAD
12:00a
SEA
6:17p
18h 17m
1 stop
SEA
12:00a
IAD
8:42a
8h 42m
1 stop
Depart: Wed Oct 11 2017 Return: Mon Oct 16 2017 Trip spans 6 days
Multiple Airlines
Multiple Airlines
IAD
12:00a
SEA
5:41a
5h 41m
nonstop
SEA
12:00a
IAD
8:42a
8h 42m
1 stop
Depart: Sat Nov 11 2017 Return: Tue Nov 14 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
IAD
12:00a
SEA
5:57a
5h 57m
nonstop
SEA
12:00a
IAD
4:56a
4h 56m
nonstop
Depart: Wed Oct 11 2017 Return: Sat Oct 14 2017 Trip spans 4 days
American Airlines
American Airlines
DCA
12:00a
SEA
8:47a
8h 47m
1 stop
SEA
12:00a
DCA
7:14a
7h 14m
1 stop
Depart: Thu Nov 2 2017 Return: Tue Nov 7 2017 Trip spans 6 days
United
United
IAD
12:00a
SEA
5:53a
5h 53m
nonstop
SEA
12:00a
IAD
4:48a
4h 48m
nonstop
Depart: Sat Oct 7 2017 Return: Sat Oct 14 2017 Trip spans 8 days
Delta
Delta
DCA
12:00a
SEA
8:36a
8h 36m
1 stop
SEA
12:00a
DCA
7:59a
7h 59m
1 stop
Depart: Tue Sep 26 2017 Return: Thu Sep 28 2017 Trip spans 3 days
Multiple Airlines
Multiple Airlines
IAD
12:00a
SEA
7:35a
7h 35m
1 stop
SEA
12:00a
IAD
7:11a
7h 11m
1 stop
Depart: Sat Nov 4 2017 Return: Sun Nov 12 2017 Trip spans 9 days
Frontier
Frontier
DCA
12:00a
SEA
12:32a
24h 32m
1 stop
SEA
12:00a
DCA
5:45p
17h 45m
1 stop
Depart: Sat Nov 4 2017 Return: Sun Nov 12 2017 Trip spans 9 days
United
United
IAD
12:00a
SEA
5:50a
5h 50m
nonstop
SEA
12:00a
IAD
4:48a
4h 48m
nonstop
Depart: Thu Nov 2 2017 Return: Tue Nov 7 2017 Trip spans 6 days
American Airlines
American Airlines
DCA
12:00a
SEA
9:37a
9h 37m
1 stop
SEA
12:00a
DCA
9:12a
9h 12m
1 stop
Depart: Tue Sep 26 2017 Return: Fri Sep 29 2017 Trip spans 4 days
Multiple Airlines
Multiple Airlines
DCA
12:00a
SEA
7:52a
7h 52m
1 stop
SEA
12:00a
DCA
7:22a
7h 22m
1 stop
Depart: Fri Dec 15 2017 Return: Mon Dec 18 2017 Trip spans 4 days
Frontier
Frontier
DCA
12:00a
SEA
11:37p
23h 37m
1 stop
SEA
12:00a
DCA
10:30p
22h 30m
1 stop
Depart: Mon Oct 9 2017 Return: Sat Oct 14 2017 Trip spans 6 days
Multiple Airlines
Multiple Airlines
DCA
12:00a
SEA
4:50p
16h 50m
1 stop
SEA
12:00a
DCA
7:14a
7h 14m
1 stop
Depart: Thu Nov 9 2017 Return: Mon Nov 13 2017 Trip spans 5 days
American Airlines
American Airlines
IAD
12:00a
SEA
9:55a
9h 55m
1 stop
SEA
12:00a
IAD
7:24a
7h 24m
1 stop
Depart: Mon Dec 25 2017 Return: Sat Dec 30 2017 Trip spans 6 days
United
United
DCA
12:00a
SEA
9:29a
9h 29m
1 stop
SEA
12:00a
DCA
8:21a
8h 21m
1 stop
Depart: Sun Jan 28 2018 Return: Fri Feb 2 2018 Trip spans 6 days
Frontier
Frontier
DCA
12:00a
SEA
10:39a
10h 39m
1 stop
SEA
12:00a
DCA
8:04a
8h 04m
1 stop
Depart: Thu Nov 16 2017 Return: Mon Nov 20 2017 Trip spans 5 days
Multiple Airlines
Multiple Airlines
DCA
12:00a
SEA
10:32a
10h 32m
1 stop
SEA
12:00a
DCA
7:10a
7h 10m
1 stop
Depart: Fri Dec 1 2017 Return: Sun Dec 3 2017 Trip spans 3 days
American Airlines
American Airlines
IAD
12:00a
SEA
9:55a
9h 55m
1 stop
SEA
12:00a
IAD
7:36a
7h 36m
1 stop
Depart: Thu Feb 15 2018 Return: Mon Feb 19 2018 Trip spans 5 days
United
United
DCA
12:00a
SEA
11:35a
11h 35m
1 stop
SEA
12:00a
DCA
11:10a
11h 10m
1 stop
Depart: Fri Feb 2 2018 Return: Sun Feb 11 2018 Trip spans 10 days
Frontier
Frontier
DCA
12:00a
SEA
11:42p
23h 42m
1 stop
SEA
12:00a
DCA
10:16p
22h 16m
1 stop
Direct flights WAS to SEA on United
Flight # Depart IAD Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
389 8:24 am 11:06 am Sep 16 - Sep 30
389 8:35 am 11:17 am Oct 1 - Oct 8
389 8:35 am 11:17 am Oct 5 - Oct 5
389 8:35 am 11:17 am Oct 6 - Oct 17
389 8:35 am 11:17 am Oct 7 - Oct 28
389 8:35 am 11:17 am Oct 16 - Oct 23
389 8:35 am 11:17 am Oct 18 - Oct 18
389 8:35 am 11:17 am Oct 19 - Oct 26
389 8:35 am 11:17 am Oct 22 - Oct 22
389 8:35 am 11:17 am Oct 27 - Oct 27
389 8:35 am 11:17 am Sep 29 - Oct 4
389 8:35 am 11:17 am Oct 9 - Oct 15
389 8:35 am 11:17 am Sep 25 - Oct 2
389 8:35 am 11:17 am Sep 12 - Sep 27
389 8:35 am 11:17 am Oct 20 - Oct 25
357 12:35 pm 3:16 pm Oct 5 - Oct 27
357 12:35 pm 3:16 pm Oct 1 - Oct 22
357 12:47 pm 3:28 pm Sep 14 - Oct 4
326 5:18 pm 8:05 pm Sep 9 - Sep 30
326 5:23 pm 8:10 pm Oct 24 - Oct 27
326 5:23 pm 8:10 pm Oct 23 - Oct 23
326 5:23 pm 8:10 pm Oct 22 - Oct 22
326 5:23 pm 8:10 pm Oct 21 - Oct 21
326 5:23 pm 8:10 pm Oct 16 - Oct 20
326 5:23 pm 8:10 pm Oct 9 - Oct 13
326 5:23 pm 8:10 pm Oct 8 - Oct 15
326 5:23 pm 8:10 pm Oct 7 - Oct 14
326 5:33 pm 8:20 pm Sep 24 - Oct 1
326 5:33 pm 8:20 pm Sep 26 - Sep 28
326 5:33 pm 8:20 pm Oct 2 - Oct 4
326 5:33 pm 8:20 pm Oct 6 - Oct 6
326 5:33 pm 8:20 pm Oct 5 - Oct 5
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

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Airports
Origin

Washington
only $238
only $301
Destination

Seattle
$238
Airlines Airline reviews

104 travelers who booked a flight from Washington to Seattle rated their chosen airlines with an average of 7.3.

Overall
7.5
Boarding
7.7
Crew
8.0
Comfort
7.2
Food
6.6
Entertainment
6.3