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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 Aug 11 2015 Return: Wed Sep 2 2015 Trip spans 23 days
American Airlines
American Airlines
IAD
3:50p
SEA
11:40p
7h 50m
1 stop
SEA
6:10p
IAD
1:50a
7h 40m
1 stop
Depart: Tue Aug 18 2015 Return: Mon Aug 24 2015 Trip spans 7 days
US Airways
US Airways
IAD
1:20a
SEA
8:55a
7h 35m
1 stop
SEA
8:20p
IAD
6:01a
9h 41m
1 stop
Depart: Fri Sep 11 2015 Return: Mon Sep 14 2015 Trip spans 4 days
American Airlines
American Airlines
DCA
2:45p
SEA
10:22p
7h 37m
1 stop
SEA
7:59p
DCA
3:03a
7h 04m
1 stop
Depart: Mon Jun 1 2015 Return: Wed Jun 3 2015 Trip spans 3 days
Sun Country Air
Sun Country Air
DCA
6:00p
SEA
11:15a
17h 15m
1 stop
SEA
1:10p
DCA
3:20a
14h 10m
1 stop
Depart: Tue Jun 2 2015 Return: Tue Jun 9 2015 Trip spans 8 days
Virgin America
Virgin America
IAD
5:00a
SEA
3:55p
10h 55m
1 stop
SEA
1:40p
IAD
12:40a
11h 00m
1 stop
Depart: Thu Aug 20 2015 Return: Wed Aug 26 2015 Trip spans 7 days
Delta
Delta
IAD
1:40p
SEA
11:50p
10h 10m
1 stop
SEA
8:55p
IAD
5:29a
8h 34m
1 stop
Depart: Thu Sep 3 2015 Return: Sat Sep 5 2015 Trip spans 3 days
Delta
Delta
DCA
2:55a
SEA
10:15a
7h 20m
1 stop
SEA
5:00a
DCA
12:15p
7h 15m
1 stop
Depart: Wed May 27 2015 Return: Wed Jun 3 2015 Trip spans 8 days
Frontier
Frontier
DCA
9:30a
SEA
9:19p
11h 49m
1 stop
SEA
6:20a
DCA
2:49p
8h 29m
1 stop
Depart: Sat Sep 26 2015 Return: Fri Oct 2 2015 Trip spans 7 days
JetBlue Airways
JetBlue Airways
DCA
12:50p
SEA
9:22p
8h 32m
1 stop
SEA
6:53a
DCA
2:26p
7h 33m
1 stop
Depart: Thu Jun 4 2015 Return: Mon Jun 8 2015 Trip spans 5 days
Alaska Airlines
Alaska Airlines
DCA
4:00a
SEA
9:38a
5h 38m
nonstop
SEA
8:50p
DCA
4:28a
7h 38m
1 stop
Depart: Sat May 9 2015 Return: Sun May 10 2015 Trip spans 2 days
US Airways
US Airways
DCA
3:00a
SEA
12:32p
9h 32m
1 stop
SEA
1:15a
DCA
9:08a
7h 53m
1 stop
Depart: Sun Sep 27 2015 Return: Sat Oct 3 2015 Trip spans 7 days
JetBlue Airways
JetBlue Airways
IAD
2:55a
SEA
11:18a
8h 23m
1 stop
SEA
5:51p
IAD
2:09a
8h 18m
1 stop
Depart: Fri May 29 2015 Return: Mon Jun 1 2015 Trip spans 4 days
United
United
IAD
1:20p
SEA
7:10p
5h 50m
nonstop
SEA
7:18p
IAD
4:20a
9h 02m
1 stop
Depart: Sat Jul 4 2015 Return: Wed Jul 8 2015 Trip spans 5 days
Alaska Airlines
Alaska Airlines
IAD
2:40p
SEA
8:49p
6h 09m
nonstop
SEA
5:35a
IAD
10:39a
5h 04m
nonstop
Depart: Tue Jun 23 2015 Return: Wed Jul 8 2015 Trip spans 16 days
United
United
DCA
1:44p
SEA
11:59p
10h 15m
1 stop
SEA
2:00a
DCA
11:10a
9h 10m
1 stop
Depart: Thu Aug 6 2015 Return: Thu Aug 27 2015 Trip spans 22 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
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 3 - Jun 6
9218 8:00 am 10:35 am Jun 7 - Aug 22
Airports
Origin

Washington
only $257
only $260
Destination

Seattle
$257