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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: Tue Sep 15 2015 Return: Tue Sep 22 2015 Trip spans 8 days
American Airlines
American Airlines
IAD
1:20a
SEA
11:02a
9h 42m
1 stop
SEA
6:10p
IAD
3:30a
9h 20m
1 stop
Depart: Tue Aug 18 2015 Return: Mon Aug 24 2015 Trip spans 7 days
US Airways
US Airways
IAD
1:20a
SEA
8:59a
7h 39m
1 stop
SEA
3:00a
IAD
10:16a
7h 16m
1 stop
Depart: Wed Aug 19 2015 Return: Sat Aug 29 2015 Trip spans 11 days
US Airways
US Airways
DCA
2:25a
SEA
11:51a
9h 26m
1 stop
SEA
6:15p
DCA
2:30a
8h 15m
1 stop
Depart: Sat Aug 29 2015 Return: Tue Sep 8 2015 Trip spans 11 days
American Airlines
American Airlines
DCA
2:45p
SEA
10:22p
7h 37m
1 stop
SEA
8:45p
DCA
3:59a
7h 14m
1 stop
Depart: Thu Oct 8 2015 Return: Sat Oct 10 2015 Trip spans 3 days
Virgin America
Virgin America
IAD
5:00a
SEA
4:05p
11h 05m
1 stop
SEA
8:05a
IAD
3:55p
7h 50m
1 stop
Depart: Fri Sep 11 2015 Return: Tue Sep 22 2015 Trip spans 12 days
Virgin America
Virgin America
DCA
1:25p
SEA
9:45p
8h 20m
1 stop
SEA
3:00a
DCA
2:40p
11h 40m
2 stops
Depart: Thu Sep 10 2015 Return: Mon Sep 14 2015 Trip spans 5 days
JetBlue Airways
JetBlue Airways
DCA
9:30a
SEA
9:22p
11h 52m
1 stop
SEA
7:14p
DCA
3:12a
7h 58m
1 stop
Depart: Sun Sep 13 2015 Return: Mon Sep 21 2015 Trip spans 9 days
JetBlue Airways
JetBlue Airways
IAD
2:55a
SEA
11:22a
8h 27m
1 stop
SEA
7:14p
IAD
3:04a
7h 50m
1 stop
Depart: Sun May 24 2015 Return: Mon May 25 2015 Trip spans 2 days
Delta
Delta
DCA
4:40a
SEA
11:43a
7h 03m
1 stop
SEA
2:00a
DCA
8:50a
6h 50m
1 stop
Depart: Thu Aug 27 2015 Return: Wed Sep 2 2015 Trip spans 7 days
Delta
Delta
IAD
3:00p
SEA
11:50p
8h 50m
1 stop
SEA
8:55p
IAD
5:29a
8h 34m
1 stop
Depart: Sat Aug 15 2015 Return: Mon Aug 17 2015 Trip spans 3 days
United
United
IAD
1:35p
SEA
7:15p
5h 40m
nonstop
SEA
6:25p
IAD
11:15p
4h 50m
nonstop
Depart: Mon Jun 15 2015 Return: Thu Jun 18 2015 Trip spans 4 days
United
United
DCA
12:43p
SEA
8:59p
8h 16m
1 stop
SEA
5:05p
DCA
12:51a
7h 46m
1 stop
Depart: Tue Jul 28 2015 Return: Wed Jul 29 2015 Trip spans 2 days
Alaska Airlines
Alaska Airlines
IAD
2:40p
SEA
8:45p
6h 05m
nonstop
SEA
5:35a
IAD
10:39a
5h 04m
nonstop
Depart: Tue Jul 14 2015 Return: Wed Jul 29 2015 Trip spans 16 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 Aug 3 2015 Return: Wed Aug 5 2015 Trip spans 3 days
Alaska Airlines
Alaska Airlines
DCA
2:50p
SEA
8:55p
6h 05m
nonstop
SEA
10:00a
DCA
2:59p
4h 59m
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 10:38 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