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Find Deals on Flights 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 Sep 16 2015 Return: Sun Sep 20 2015 Trip spans 5 days
Sun Country Air
Sun Country Air
DCA
6:00p
SEA
11:09a
17h 09m
1 stop
SEA
1:25p
DCA
3:20a
13h 55m
1 stop
Depart: Sat Aug 29 2015 Return: Tue Sep 1 2015 Trip spans 4 days
US Airways
US Airways
DCA
3:10a
SEA
12:24p
9h 14m
1 stop
SEA
9:50a
DCA
4:52p
7h 02m
1 stop
Depart: Wed Sep 2 2015 Return: Wed Sep 16 2015 Trip spans 15 days
American Airlines
American Airlines
IAD
1:20a
SEA
8:59a
7h 39m
1 stop
SEA
9:20a
IAD
4:24p
7h 04m
1 stop
Depart: Tue Sep 8 2015 Return: Wed Sep 16 2015 Trip spans 9 days
US Airways
US Airways
IAD
1:20a
SEA
8:59a
7h 39m
1 stop
SEA
9:20a
IAD
4:24p
7h 04m
1 stop
Depart: Tue Aug 18 2015 Return: Wed Sep 2 2015 Trip spans 16 days
Virgin America
Virgin America
IAD
6:15a
SEA
5:35p
11h 20m
1 stop
SEA
6:15a
IAD
4:00p
9h 45m
1 stop
Depart: Wed Sep 30 2015 Return: Sat Oct 3 2015 Trip spans 4 days
American Airlines
American Airlines
DCA
3:50a
SEA
11:44a
7h 54m
1 stop
SEA
6:10a
DCA
4:56p
10h 46m
1 stop
Depart: Sat Aug 22 2015 Return: Wed Sep 2 2015 Trip spans 12 days
Delta
Delta
DCA
3:20p
SEA
10:05p
6h 45m
1 stop
SEA
7:15p
DCA
1:24a
6h 09m
1 stop
Depart: Fri Sep 4 2015 Return: Fri Sep 11 2015 Trip spans 8 days
Delta
Delta
IAD
3:20p
SEA
10:29p
7h 09m
1 stop
SEA
5:39a
IAD
2:55p
9h 16m
1 stop
Depart: Thu Nov 26 2015 Return: Wed Dec 2 2015 Trip spans 7 days
JetBlue Airways
JetBlue Airways
DCA
1:05a
SEA
9:54a
8h 49m
1 stop
SEA
6:40p
DCA
1:52a
7h 12m
1 stop
Depart: Mon Aug 10 2015 Return: Wed Aug 26 2015 Trip spans 17 days
JetBlue Airways
JetBlue Airways
IAD
2:45a
SEA
11:11a
8h 26m
1 stop
SEA
5:50p
IAD
1:46a
7h 56m
1 stop
Depart: Tue Aug 4 2015 Return: Tue Aug 18 2015 Trip spans 15 days
Frontier
Frontier
DCA
1:10p
SEA
9:15p
8h 05m
1 stop
SEA
6:20a
DCA
2:47p
8h 27m
1 stop
Depart: Thu Nov 19 2015 Return: Sat Nov 28 2015 Trip spans 10 days
Alaska Airlines
Alaska Airlines
IAD
1:50p
SEA
7:55p
6h 05m
nonstop
SEA
4:50a
IAD
9:50a
5h 00m
nonstop
Depart: Mon Jul 27 2015 Return: Sat Aug 29 2015 Trip spans 34 days
United
United
DCA
11:29a
SEA
8:50p
9h 21m
1 stop
SEA
2:45a
DCA
9:19a
6h 34m
1 stop
Depart: Sat Aug 8 2015 Return: Wed Aug 19 2015 Trip spans 12 days
United
United
IAD
12:01p
SEA
5:46p
5h 45m
nonstop
SEA
5:35p
IAD
10:32p
4h 57m
nonstop
Depart: Fri Jul 24 2015 Return: Wed Jul 29 2015 Trip spans 6 days
Alaska Airlines
Alaska Airlines
DCA
2:50p
SEA
8:55p
6h 05m
nonstop
SEA
4:05a
DCA
9:07a
5h 02m
nonstop
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 10:35 am Jun 27 - Aug 22
Airports
Origin

Washington
only $297
only $274
Destination

Seattle
$274