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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: Wed Mar 18 2015 Return: Wed Mar 25 2015 Trip spans 8 days
US Airways
US Airways
IAD
1:25a
SEA
9:24a
7h 59m
1 stop
SEA
7:25a
IAD
2:23p
6h 58m
1 stop
Depart: Thu Apr 9 2015 Return: Mon Apr 13 2015 Trip spans 5 days
American Airlines
American Airlines
IAD
1:20a
SEA
9:08a
7h 48m
1 stop
SEA
6:05p
IAD
1:46a
7h 41m
1 stop
Depart: Tue Apr 28 2015 Return: Sun May 3 2015 Trip spans 6 days
American Airlines
American Airlines
DCA
11:15a
SEA
9:59p
10h 44m
1 stop
SEA
6:10p
DCA
2:32a
8h 22m
1 stop
Depart: Sat Mar 14 2015 Return: Tue Mar 17 2015 Trip spans 4 days
United
United
IAD
4:00p
SEA
9:56p
5h 56m
nonstop
SEA
6:35p
IAD
11:31p
4h 56m
nonstop
Depart: Tue Mar 17 2015 Return: Wed Mar 18 2015 Trip spans 2 days
Alaska Airlines
Alaska Airlines
IAD
2:20p
SEA
8:15p
5h 55m
nonstop
SEA
5:20a
IAD
10:20a
5h 00m
nonstop
Depart: Wed May 20 2015 Return: Sat May 30 2015 Trip spans 11 days
Multiple Airlines
Multiple Airlines
IAD
1:20a
SEA
8:55a
7h 35m
1 stop
SEA
5:20a
IAD
10:20a
5h 00m
nonstop
Depart: Fri Apr 17 2015 Return: Mon Apr 20 2015 Trip spans 4 days
Virgin America
Virgin America
IAD
5:05a
SEA
2:50p
9h 45m
1 stop
SEA
2:55p
IAD
11:00p
8h 05m
1 stop
Depart: Sat Apr 11 2015 Return: Mon Apr 20 2015 Trip spans 10 days
Delta
Delta
DCA
2:10a
SEA
9:31a
7h 21m
1 stop
SEA
8:50p
DCA
3:45a
6h 55m
1 stop
Depart: Sat Apr 18 2015 Return: Mon Apr 20 2015 Trip spans 3 days
Multiple Airlines
Multiple Airlines
DCA
7:55a
SEA
3:15p
7h 20m
1 stop
SEA
8:50p
DCA
3:45a
6h 55m
1 stop
Depart: Sun Apr 5 2015 Return: Mon Apr 13 2015 Trip spans 9 days
JetBlue Airways
JetBlue Airways
DCA
3:00a
SEA
11:12a
8h 12m
1 stop
SEA
7:13p
DCA
3:19a
8h 06m
1 stop
Depart: Fri Mar 27 2015 Return: Sun Apr 12 2015 Trip spans 17 days
United
United
DCA
3:45a
SEA
1:36p
9h 51m
1 stop
SEA
7:13p
DCA
2:57a
7h 44m
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 Aug 3 2015 Return: Fri Aug 28 2015 Trip spans 26 days
Virgin America
Virgin America
DCA
1:05p
SEA
9:40p
8h 35m
1 stop
SEA
3:05a
DCA
2:59p
11h 54m
2 stops
Depart: Wed Jul 15 2015 Return: Sun Sep 6 2015 Trip spans 54 days
Alaska Airlines
Alaska Airlines
DCA
4:00a
SEA
9:35a
5h 35m
nonstop
SEA
3:30a
DCA
10:40a
7h 10m
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 10:39 am Apr 5 - May 2
9218 8:00 am 10:50 am Mar 8 - Apr 4
9218 8:00 am 10:50 am Feb 26 - Mar 7
Airports
Origin

Washington
only $257
only $260
Destination

Seattle
$257