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

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 Seattle/Tacoma Intl to Washington

(Round-trip)
Depart: Sat Dec 2 2017 Return: Tue Dec 5 2017 Trip spans 4 days
Frontier
Frontier
SEA
12:00a
DCA
7:45a
7h 45m
1 stop
DCA
12:00a
SEA
10:32a
10h 32m
1 stop
Depart: Wed Nov 29 2017 Return: Thu Nov 30 2017 Trip spans 2 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
IAD
10:20a
10h 20m
1 stop
IAD
12:00a
SEA
5:30a
29h 30m
1 stop
Depart: Thu Nov 30 2017 Return: Sun Dec 10 2017 Trip spans 11 days
Alaska Airlines
Alaska Airlines
SEA
12:00a
IAD
4:56a
4h 56m
nonstop
IAD
12:00a
SEA
6:05a
6h 05m
nonstop
Depart: Thu Dec 7 2017 Return: Sun Dec 10 2017 Trip spans 4 days
Frontier
Frontier
SEA
12:00a
DCA
5:45p
17h 45m
1 stop
DCA
12:00a
SEA
11:37p
23h 37m
1 stop
Depart: Tue Jan 16 2018 Return: Wed Jan 24 2018 Trip spans 9 days
Frontier
Frontier
SEA
12:00a
DCA
10:30p
22h 30m
1 stop
DCA
12:00a
SEA
12:32p
12h 32m
1 stop
Depart: Wed Dec 6 2017 Return: Mon Dec 11 2017 Trip spans 6 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
DCA
8:00a
8h 00m
1 stop
DCA
12:00a
SEA
4:55p
16h 55m
1 stop
Depart: Thu Feb 1 2018 Return: Mon Feb 5 2018 Trip spans 5 days
Frontier
Frontier
SEA
12:00a
DCA
10:30p
22h 30m
1 stop
DCA
12:00a
SEA
12:32p
12h 32m
1 stop
Depart: Fri Mar 2 2018 Return: Sun Mar 4 2018 Trip spans 3 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
IAD
7:35p
19h 35m
1 stop
IAD
12:00a
SEA
5:35a
29h 35m
1 stop
Depart: Thu Nov 30 2017 Return: Tue Dec 5 2017 Trip spans 6 days
Frontier
Frontier
SEA
12:00a
DCA
10:24p
22h 24m
1 stop
DCA
12:00a
SEA
10:32a
10h 32m
1 stop
Depart: Tue Jan 23 2018 Return: Fri Jan 26 2018 Trip spans 4 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
IAD
10:15a
10h 15m
1 stop
IAD
12:00a
SEA
6:34p
18h 34m
1 stop
Depart: Wed Apr 4 2018 Return: Tue Apr 10 2018 Trip spans 7 days
Alaska Airlines
Alaska Airlines
SEA
12:00a
IAD
5:00a
5h 00m
nonstop
IAD
12:00a
SEA
5:55a
5h 55m
nonstop
Depart: Wed Jan 17 2018 Return: Sat Jan 20 2018 Trip spans 4 days
Frontier
Frontier
SEA
12:00a
DCA
8:18a
8h 18m
1 stop
DCA
12:00a
SEA
12:32p
12h 32m
1 stop
Depart: Tue May 1 2018 Return: Tue May 8 2018 Trip spans 8 days
Alaska Airlines
Alaska Airlines
SEA
12:00a
IAD
5:00a
5h 00m
nonstop
IAD
12:00a
SEA
5:55a
5h 55m
nonstop
Depart: Thu Feb 1 2018 Return: Sun Feb 4 2018 Trip spans 4 days
Frontier
Frontier
SEA
12:00a
DCA
10:30p
22h 30m
1 stop
DCA
12:00a
SEA
11:41p
23h 41m
1 stop
Depart: Thu Nov 30 2017 Return: Mon Dec 4 2017 Trip spans 5 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
DCA
5:45p
17h 45m
1 stop
DCA
12:00a
SEA
4:55p
16h 55m
1 stop
Depart: Wed Feb 14 2018 Return: Mon Feb 19 2018 Trip spans 6 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
IAD
2:49p
14h 49m
2 stops
IAD
12:00a
SEA
5:39a
5h 39m
nonstop
Depart: Mon Apr 30 2018 Return: Tue May 8 2018 Trip spans 9 days
Frontier
Frontier
SEA
12:00a
DCA
2:10p
14h 10m
1 stop
DCA
12:00a
SEA
8:02p
20h 02m
1 stop
Depart: Tue May 22 2018 Return: Sun May 27 2018 Trip spans 6 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
DCA
8:28a
8h 28m
1 stop
DCA
12:00a
SEA
11:00a
11h 00m
1 stop
Depart: Tue May 1 2018 Return: Tue May 8 2018 Trip spans 8 days
Frontier
Frontier
SEA
12:00a
DCA
8:28a
8h 28m
1 stop
DCA
12:00a
SEA
1:47p
13h 47m
1 stop
Depart: Tue May 8 2018 Return: Wed May 16 2018 Trip spans 9 days
Frontier
Frontier
SEA
12:00a
DCA
8:28a
8h 28m
1 stop
DCA
12:00a
SEA
1:39p
13h 39m
1 stop
Direct flights SEA to WAS on United
Flight # Depart SEA Arrive IAD Sun Mon Tue Wed Thu Fri Sat Valid Between
419 7:45 am 3:47 pm Dec 13 - Dec 13
419 7:45 am 3:47 pm Dec 6 - Dec 6
419 7:45 am 3:47 pm Dec 5 - Dec 12
419 7:45 am 3:45 pm Dec 3 - Dec 10
419 7:45 am 3:47 pm Dec 2 - Dec 16
419 7:45 am 3:47 pm Dec 1 - Dec 11
419 7:45 am 3:47 pm Nov 30 - Dec 14
419 7:45 am 3:47 pm Nov 29 - Nov 29
419 7:45 am 3:45 pm Nov 26 - Nov 26
419 7:45 am 3:47 pm Dec 19 - Dec 19
419 7:45 am 3:47 pm Dec 18 - Dec 18
419 7:45 am 3:47 pm Dec 15 - Dec 17
419 7:45 am 3:47 pm Nov 21 - Nov 25
419 8:05 am 4:07 pm Nov 28 - Nov 28
419 8:05 am 4:05 pm Nov 27 - Nov 27
419 8:20 am 4:15 pm Dec 25 - Dec 25
419 8:20 am 4:13 pm Dec 24 - Dec 24
419 8:20 am 4:13 pm Dec 23 - Dec 23
419 8:20 am 4:15 pm Dec 21 - Jan 5
419 8:20 am 4:15 pm Dec 20 - Jan 3
260 12:50 pm 8:39 pm Nov 27 - Nov 27
260 12:50 pm 8:39 pm Nov 28 - Dec 19
260 12:50 pm 8:39 pm Nov 29 - Nov 29
260 12:50 pm 8:39 pm Dec 6 - Dec 13
260 12:50 pm 8:39 pm Dec 1 - Dec 4
260 12:50 pm 8:39 pm Dec 3 - Dec 3
260 12:50 pm 8:39 pm Dec 8 - Dec 15
260 12:50 pm 8:39 pm Dec 10 - Dec 17
260 12:50 pm 8:39 pm Dec 11 - Dec 11
260 12:50 pm 8:44 pm Dec 21 - Dec 21
260 12:50 pm 8:44 pm Dec 22 - Dec 29
260 12:50 pm 8:39 pm Dec 18 - Dec 18
260 12:50 pm 8:46 pm Dec 20 - Dec 20
260 12:50 pm 8:39 pm Nov 25 - Nov 25
260 12:50 pm 8:39 pm Nov 26 - Nov 26
262 10:30 pm 6:19 am Dec 20 - Dec 28
262 10:30 pm 6:19 am Dec 22 - Dec 31
262 10:50 pm 6:38 am Dec 9 - Dec 16
262 10:50 pm 6:38 am Dec 17 - Dec 17
262 10:50 pm 6:38 am Nov 24 - Nov 26
262 10:50 pm 6:38 am Dec 2 - Dec 3
262 10:50 pm 6:38 am Nov 27 - Nov 27
262 11:10 pm 6:58 am Nov 25 - Nov 25
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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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

Seattle
$221
Destination

Washington
only $241
only $221