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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 Sep 12 2015 Return: Tue Sep 15 2015 Trip spans 4 days
American Airlines
American Airlines
IAD
1:20a
SEA
8:55a
7h 35m
1 stop
SEA
6:10p
IAD
3:30a
9h 20m
1 stop
Depart: Tue Sep 15 2015 Return: Tue Sep 22 2015 Trip spans 8 days
US Airways
US Airways
IAD
1:20a
SEA
8:55a
7h 35m
1 stop
SEA
6:10p
IAD
3:30a
9h 20m
1 stop
Depart: Tue Aug 18 2015 Return: Mon Sep 14 2015 Trip spans 28 days
American Airlines
American Airlines
DCA
2:25a
SEA
11:51a
9h 26m
1 stop
SEA
8:45p
DCA
3:59a
7h 14m
1 stop
Depart: Tue Aug 25 2015 Return: Tue Sep 1 2015 Trip spans 8 days
US Airways
US Airways
DCA
7:40a
SEA
5:54p
10h 14m
1 stop
SEA
4:20a
DCA
1:57p
9h 37m
1 stop
Depart: Sun Oct 4 2015 Return: Tue Oct 6 2015 Trip spans 3 days
Virgin America
Virgin America
IAD
6:00a
SEA
3:35p
9h 35m
1 stop
SEA
6:20a
IAD
3:55p
9h 35m
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: Thu May 28 2015 Return: Fri May 29 2015 Trip spans 2 days
Delta
Delta
DCA
2:59a
SEA
10:55a
7h 56m
1 stop
SEA
8:35p
DCA
3:44a
7h 09m
1 stop
Depart: Sat May 30 2015 Return: Sat Jun 6 2015 Trip spans 8 days
Delta
Delta
IAD
9:00a
SEA
6:05p
9h 05m
1 stop
SEA
1:45a
IAD
9:51a
8h 06m
1 stop
Depart: Wed Aug 12 2015 Return: Tue Aug 25 2015 Trip spans 14 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: Mon Jun 22 2015 Return: Mon Jun 29 2015 Trip spans 8 days
JetBlue Airways
JetBlue Airways
IAD
2:45a
SEA
11:19a
8h 34m
1 stop
SEA
5:50p
IAD
1:46a
7h 56m
1 stop
Depart: Sat Aug 15 2015 Return: Thu Aug 20 2015 Trip spans 6 days
United
United
IAD
1:35p
SEA
7:15p
5h 40m
nonstop
SEA
4:05a
IAD
8:55a
4h 50m
nonstop
Depart: Wed Oct 21 2015 Return: Tue Oct 27 2015 Trip spans 7 days
Alaska Airlines
Alaska Airlines
IAD
2:50p
SEA
9:00p
6h 10m
nonstop
SEA
5:35a
IAD
10:50a
5h 15m
nonstop
Depart: Mon Jul 13 2015 Return: Thu Jul 16 2015 Trip spans 4 days
United
United
DCA
3:50p
SEA
12:10a
8h 20m
1 stop
SEA
2:53a
DCA
9:59a
7h 06m
1 stop
Depart: Sat Jul 4 2015 Return: Thu Jul 9 2015 Trip spans 6 days
Alaska Airlines
Alaska Airlines
DCA
2:50p
SEA
8:56p
6h 06m
nonstop
SEA
9:45a
DCA
2:59p
5h 14m
nonstop
Depart: Tue Jul 7 2015 Return: Tue Jul 14 2015 Trip spans 8 days
Frontier
Frontier
DCA
1:10p
SEA
9:15p
8h 05m
1 stop
SEA
6:20a
DCA
2:47p
8h 27m
1 stop
Depart: Mon Jun 29 2015 Return: Tue Jul 7 2015 Trip spans 9 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
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 10:38 am May 21 - Jun 6
9218 8:00 am 10:35 am Jun 7 - Aug 22
Airports
Origin

Washington
only $297
only $300
Destination

Seattle
$297