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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 Apr 25 2015 Return: Sat May 2 2015 Trip spans 8 days
US Airways
US Airways
DCA
2:55a
SEA
12:32p
9h 37m
1 stop
SEA
1:15a
DCA
9:11a
7h 56m
1 stop
Depart: Fri Feb 6 2015 Return: Wed Feb 11 2015 Trip spans 6 days
US Airways
US Airways
IAD
12:20a
SEA
10:22a
10h 02m
1 stop
SEA
8:25a
IAD
3:24p
6h 59m
1 stop
Depart: Mon Feb 9 2015 Return: Tue Feb 17 2015 Trip spans 9 days
American Airlines
American Airlines
DCA
2:00p
SEA
9:25p
7h 25m
1 stop
SEA
6:50p
DCA
1:57a
7h 07m
1 stop
Depart: Mon May 4 2015 Return: Mon May 11 2015 Trip spans 8 days
Multiple Airlines
Multiple Airlines
IAD
3:30a
SEA
2:10p
10h 40m
1 stop
SEA
6:10p
IAD
3:30a
9h 20m
1 stop
Depart: Thu Apr 30 2015 Return: Tue May 5 2015 Trip spans 6 days
Multiple Airlines
Multiple Airlines
DCA
2:00a
SEA
12:31p
10h 31m
1 stop
SEA
1:15a
DCA
9:09a
7h 54m
1 stop
Depart: Sat May 2 2015 Return: Tue May 5 2015 Trip spans 4 days
Frontier
Frontier
DCA
1:25p
SEA
10:01p
8h 36m
1 stop
SEA
7:15a
DCA
3:00p
7h 45m
1 stop
Depart: Sun Mar 1 2015 Return: Fri Mar 6 2015 Trip spans 6 days
Virgin America
Virgin America
IAD
5:00a
SEA
2:25p
9h 25m
1 stop
SEA
5:50a
IAD
2:00p
8h 10m
1 stop
Depart: Fri Feb 13 2015 Return: Wed Feb 18 2015 Trip spans 6 days
American Airlines
American Airlines
IAD
2:28p
SEA
8:34a
18h 06m
1 stop
SEA
2:00a
IAD
10:46a
8h 46m
1 stop
Depart: Sun May 3 2015 Return: Mon May 11 2015 Trip spans 9 days
Virgin America
Virgin America
DCA
1:15p
SEA
9:40p
8h 25m
1 stop
SEA
3:05a
DCA
2:20p
11h 15m
2 stops
Depart: Tue Apr 7 2015 Return: Fri Apr 10 2015 Trip spans 4 days
Delta
Delta
DCA
1:00p
SEA
9:50p
8h 50m
1 stop
SEA
8:55p
DCA
3:56a
7h 01m
1 stop
Depart: Mon Jul 6 2015 Return: Mon Jul 13 2015 Trip spans 8 days
Delta
Delta
IAD
3:00p
SEA
10:59p
7h 59m
1 stop
SEA
6:45p
IAD
2:33a
7h 48m
1 stop
Depart: Sat Mar 28 2015 Return: Mon Apr 6 2015 Trip spans 10 days
JetBlue Airways
JetBlue Airways
DCA
12:37p
SEA
9:05p
8h 28m
1 stop
SEA
7:02p
DCA
3:16a
8h 14m
1 stop
Depart: Sun Apr 26 2015 Return: Sat May 2 2015 Trip spans 7 days
Alaska Airlines
Alaska Airlines
IAD
2:20p
SEA
8:15p
5h 55m
nonstop
SEA
5:20a
IAD
10:20a
5h 00m
nonstop
Depart: Sun Jun 7 2015 Return: Wed Jun 10 2015 Trip spans 4 days
United
United
IAD
4:15a
SEA
9:46a
5h 31m
nonstop
SEA
8:50a
IAD
1:38p
4h 48m
nonstop
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 11:05 am Jan 19 - Feb 7
9218 8:00 am 10:50 am Feb 8 - Mar 7
Airports
Origin

Washington
only $257
only $255
Destination

Seattle
$255