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Find Flight Deals from Washington Dulles Intl to Seattle/Tacoma Intl (IAD - SEA)

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Washington Dulles Intl to Seattle/Tacoma Intl

(Round-trip)
Depart: Sat Feb 7 2015 Return: Mon Feb 9 2015 Trip spans 3 days
Multiple Airlines
Multiple Airlines
IAD
12:20a
SEA
8:19a
7h 59m
1 stop
SEA
6:05p
IAD
1:04a
6h 59m
1 stop
Depart: Wed Jan 7 2015 Return: Sun Jan 18 2015 Trip spans 12 days
US Airways
US Airways
IAD
8:40a
SEA
7:00p
10h 20m
1 stop
SEA
8:25a
IAD
3:23p
6h 58m
1 stop
Depart: Thu Jan 8 2015 Return: Tue Jan 20 2015 Trip spans 13 days
US Airways
US Airways
IAD
8:40a
SEA
7:00p
10h 20m
1 stop
SEA
5:20p
IAD
12:45a
7h 25m
1 stop
Depart: Fri Jan 9 2015 Return: Fri Jan 30 2015 Trip spans 22 days
US Airways
US Airways
IAD
8:40a
SEA
7:00p
10h 20m
1 stop
SEA
8:25a
IAD
3:23p
6h 58m
1 stop
Depart: Sat Jan 10 2015 Return: Mon Jan 12 2015 Trip spans 3 days
US Airways
US Airways
IAD
12:20a
SEA
8:19a
7h 59m
1 stop
SEA
5:20p
IAD
12:45a
7h 25m
1 stop
Depart: Wed Jan 14 2015 Return: Thu Jan 15 2015 Trip spans 2 days
US Airways
US Airways
IAD
11:15a
SEA
7:00p
7h 45m
1 stop
SEA
8:25a
IAD
3:23p
6h 58m
1 stop
Depart: Thu Jan 15 2015 Return: Fri Jan 16 2015 Trip spans 2 days
US Airways
US Airways
IAD
11:15a
SEA
7:00p
7h 45m
1 stop
SEA
8:25a
IAD
3:23p
6h 58m
1 stop
Depart: Fri Jan 16 2015 Return: Sat Jan 17 2015 Trip spans 2 days
US Airways
US Airways
IAD
11:15a
SEA
7:00p
7h 45m
1 stop
SEA
6:15a
IAD
1:06p
6h 51m
1 stop
Depart: Sun Jan 18 2015 Return: Tue Jan 20 2015 Trip spans 3 days
US Airways
US Airways
IAD
11:15a
SEA
7:00p
7h 45m
1 stop
SEA
5:20p
IAD
12:45a
7h 25m
1 stop
Depart: Tue Jan 20 2015 Return: Mon Jan 26 2015 Trip spans 7 days
US Airways
US Airways
IAD
2:00a
SEA
12:41p
10h 41m
1 stop
SEA
5:20p
IAD
12:45a
7h 25m
1 stop
Depart: Wed Jan 21 2015 Return: Sat Jan 24 2015 Trip spans 4 days
US Airways
US Airways
IAD
11:15a
SEA
7:00p
7h 45m
1 stop
SEA
6:15a
IAD
1:06p
6h 51m
1 stop
Depart: Thu Jan 22 2015 Return: Sat Jan 24 2015 Trip spans 3 days
US Airways
US Airways
IAD
11:15a
SEA
7:00p
7h 45m
1 stop
SEA
6:15a
IAD
1:06p
6h 51m
1 stop
Depart: Fri Jan 23 2015 Return: Sat Jan 24 2015 Trip spans 2 days
US Airways
US Airways
IAD
11:15a
SEA
7:00p
7h 45m
1 stop
SEA
6:15a
IAD
1:06p
6h 51m
1 stop
Depart: Sat Jan 24 2015 Return: Sun Jan 25 2015 Trip spans 2 days
US Airways
US Airways
IAD
12:20a
SEA
8:19a
7h 59m
1 stop
SEA
5:20p
IAD
12:45a
7h 25m
1 stop
Depart: Mon Jan 12 2015 Return: Wed Jan 14 2015 Trip spans 3 days
Delta
Delta
IAD
12:07p
SEA
8:08p
8h 01m
1 stop
SEA
5:55p
IAD
1:13a
7h 18m
1 stop
Depart: Sat Feb 14 2015 Return: Tue Feb 17 2015 Trip spans 4 days
American Airlines
American Airlines
IAD
8:07a
SEA
6:44p
10h 37m
1 stop
SEA
6:28a
IAD
3:53p
9h 25m
1 stop
Depart: Sun Feb 15 2015 Return: Tue Feb 17 2015 Trip spans 3 days
Virgin America
Virgin America
IAD
5:00a
SEA
2:25p
9h 25m
1 stop
SEA
4:00a
IAD
12:10p
8h 10m
1 stop
Depart: Fri Jun 5 2015 Return: Mon Jun 8 2015 Trip spans 4 days
JetBlue Airways
JetBlue Airways
IAD
2:45a
SEA
11:21a
8h 36m
1 stop
SEA
6:50p
IAD
3:32a
8h 42m
1 stop
Depart: Mon Feb 23 2015 Return: Thu Feb 26 2015 Trip spans 4 days
United
United
IAD
1:47p
SEA
7:37p
5h 50m
nonstop
SEA
2:44a
IAD
7:40a
4h 56m
nonstop
Depart: Sun Mar 22 2015 Return: Wed Apr 1 2015 Trip spans 11 days
Alaska Airlines
Alaska Airlines
IAD
2:20p
SEA
8:15p
5h 55m
nonstop
SEA
5:20a
IAD
10:20a
5h 00m
nonstop
Change your search
Direct flights IAD to SEA on United
Flight # Depart IAD Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
282 8:09 am 11:10 am Jan 3 - Jan 3
282 8:10 am 11:11 am Dec 30 - Dec 30
282 8:10 am 11:11 am Dec 19 - Dec 29
282 8:10 am 11:11 am Jan 2 - Jan 5
326 8:10 am 11:11 am Jan 1 - Jan 1
326 8:10 am 11:11 am Dec 31 - Dec 31
357 12:30 pm 3:30 pm Dec 21 - Jan 4
357 12:30 pm 3:30 pm Jan 1 - Jan 1
357 12:30 pm 3:30 pm Dec 22 - Jan 5
357 4:25 pm 7:23 pm Jan 3 - Jan 3
1596 5:41 pm 8:41 pm Dec 28 - Dec 28
1615 5:41 pm 8:41 pm Jan 1 - Jan 1
1615 5:41 pm 8:41 pm Jan 5 - Jan 5
1615 5:41 pm 8:41 pm Dec 29 - Dec 29
1615 5:41 pm 8:41 pm Dec 30 - Dec 30
1615 5:41 pm 8:41 pm Jan 2 - Jan 2
1694 5:41 pm 8:41 pm Dec 24 - Dec 31
1615 5:56 pm 8:53 pm Jan 27 - Jan 27
1615 5:56 pm 8:53 pm Jan 23 - Jan 23
1615 5:56 pm 8:53 pm Jan 20 - Jan 20
1615 5:56 pm 8:53 pm Jan 16 - Jan 16
1615 5:56 pm 8:53 pm Jan 26 - Jan 30
1615 5:56 pm 8:53 pm Jan 15 - Jan 22
1615 5:56 pm 8:53 pm Jan 13 - Jan 13
1615 5:56 pm 8:53 pm Jan 8 - Jan 12
1615 5:56 pm 8:53 pm Jan 9 - Jan 9
1615 5:56 pm 8:53 pm Jan 6 - Jan 6
1445 5:57 pm 8:54 pm Jan 14 - Jan 14
1615 5:57 pm 8:54 pm Jan 21 - Feb 11
1615 5:57 pm 8:54 pm Jan 7 - Jan 7
856 5:58 pm 8:53 pm Jan 19 - Jan 19
1646 6:00 pm 8:57 pm Jan 11 - Jan 25
1687 6:20 pm 9:20 pm Jan 4 - Jan 4
326 6:50 pm 9:48 pm Jan 3 - Jan 3
1615 6:57 pm 9:54 pm Jan 10 - Feb 7
Airports
Origin

Washington
$255
Destination

Seattle
$255