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Find Flight Deals from Washington to Seattle/Tacoma Intl (WAS - SEA)

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Washington to Seattle/Tacoma Intl

(Round-trip)
Depart: Sat May 2 2015 Return: Sun May 3 2015 Trip spans 2 days
American Airlines
American Airlines
DCA
2:55a
SEA
12:32p
9h 37m
1 stop
SEA
6:10p
DCA
2:32a
8h 22m
1 stop
Depart: Wed Mar 18 2015 Return: Wed Apr 8 2015 Trip spans 22 days
American Airlines
American Airlines
IAD
1:25a
SEA
9:24a
7h 59m
1 stop
SEA
6:05p
IAD
1:46a
7h 41m
1 stop
Depart: Wed Mar 25 2015 Return: Wed Apr 8 2015 Trip spans 15 days
US Airways
US Airways
IAD
1:25a
SEA
9:24a
7h 59m
1 stop
SEA
7:10a
IAD
2:09p
6h 59m
1 stop
Depart: Thu May 7 2015 Return: Mon May 11 2015 Trip spans 5 days
Multiple Airlines
Multiple Airlines
IAD
1:20a
SEA
9:08a
7h 48m
1 stop
SEA
6:05p
IAD
1:46a
7h 41m
1 stop
Depart: Sat Mar 14 2015 Return: Tue Mar 24 2015 Trip spans 11 days
Alaska Airlines
Alaska Airlines
IAD
2:20p
SEA
8:15p
5h 55m
nonstop
SEA
5:20a
IAD
10:20a
5h 00m
nonstop
Depart: Tue Mar 17 2015 Return: Tue Mar 24 2015 Trip spans 8 days
United
United
IAD
2:56p
SEA
8:52p
5h 56m
nonstop
SEA
6:35p
IAD
11:31p
4h 56m
nonstop
Depart: Wed Jun 3 2015 Return: Thu Jun 4 2015 Trip spans 2 days
Virgin America
Virgin America
IAD
5:00a
SEA
3:55p
10h 55m
1 stop
SEA
1:40p
IAD
12:50a
11h 10m
1 stop
Depart: Sun Apr 26 2015 Return: Wed Apr 29 2015 Trip spans 4 days
Delta
Delta
DCA
2:10a
SEA
9:32a
7h 22m
1 stop
SEA
8:50p
DCA
3:45a
6h 55m
1 stop
Depart: Tue Sep 1 2015 Return: Wed Sep 9 2015 Trip spans 9 days
Alaska Airlines
Alaska Airlines
DCA
1:43a
SEA
9:34a
7h 51m
1 stop
SEA
4:10a
DCA
9:05a
4h 55m
nonstop
Depart: Sat Apr 4 2015 Return: Tue Apr 14 2015 Trip spans 11 days
Multiple Airlines
Multiple Airlines
DCA
2:45p
SEA
8:45p
6h 00m
nonstop
SEA
7:20a
DCA
2:22p
7h 02m
1 stop
Depart: Fri Mar 27 2015 Return: Wed Apr 1 2015 Trip spans 6 days
JetBlue Airways
JetBlue Airways
DCA
3:00a
SEA
11:07a
8h 07m
1 stop
SEA
7:14p
DCA
3:19a
8h 05m
1 stop
Depart: Sun Jun 7 2015 Return: Mon Jun 8 2015 Trip spans 2 days
JetBlue Airways
JetBlue Airways
IAD
3:23a
SEA
11:41a
8h 18m
1 stop
SEA
6:50p
IAD
3:58a
9h 08m
1 stop
Depart: Mon Aug 10 2015 Return: Mon Aug 24 2015 Trip spans 15 days
Delta
Delta
IAD
3:00p
SEA
10:59p
7h 59m
1 stop
SEA
6:25p
IAD
2:12a
7h 47m
1 stop
Depart: Mon Apr 13 2015 Return: Tue Apr 14 2015 Trip spans 2 days
Frontier
Frontier
DCA
9:30a
SEA
5:20p
7h 50m
1 stop
SEA
6:20a
DCA
2:59p
8h 39m
1 stop
Depart: Sat Mar 28 2015 Return: Thu Apr 23 2015 Trip spans 27 days
United
United
DCA
3:45a
SEA
8:44p
16h 59m
1 stop
SEA
5:10p
DCA
12:53a
7h 43m
1 stop
Depart: Fri Aug 14 2015 Return: Tue Sep 1 2015 Trip spans 19 days
Virgin America
Virgin America
DCA
1:05p
SEA
9:40p
8h 35m
1 stop
SEA
3:05a
DCA
2:30p
11h 25m
2 stops
Depart: Sun Mar 29 2015 Return: Tue Mar 31 2015 Trip spans 3 days
US Airways
US Airways
DCA
1:35a
SEA
9:05a
7h 30m
1 stop
SEA
1:00a
DCA
9:02a
8h 02m
1 stop
Depart: Thu Jun 25 2015 Return: Mon Jun 29 2015 Trip spans 5 days
Sun Country Air
Sun Country Air
DCA
6:00p
SEA
8:35a
14h 35m
1 stop
SEA
7:55p
DCA
3:20a
7h 25m
1 stop
Change your search
Direct flights WAS to SEA on Delta
Flight # Depart DCA Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
9218 8:00 am 10:50 am Mar 8 - Apr 4
9218 8:00 am 10:39 am Apr 5 - May 2
Airports
Origin

Washington
only $257
only $255
Destination

Seattle
$255