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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: Tue Jan 20 2015 Return: Tue Feb 10 2015 Trip spans 22 days
Delta
Delta
IAD
11:30a
SEA
7:57p
8h 27m
1 stop
SEA
1:00a
IAD
7:25a
6h 25m
1 stop
Depart: Tue Jan 27 2015 Return: Mon Feb 2 2015 Trip spans 7 days
Delta
Delta
IAD
8:30a
SEA
7:57p
11h 27m
1 stop
SEA
5:55p
IAD
1:13a
7h 18m
1 stop
Depart: Wed Jan 28 2015 Return: Mon Feb 2 2015 Trip spans 6 days
Delta
Delta
IAD
6:40a
SEA
5:05p
10h 25m
1 stop
SEA
5:55p
IAD
1:13a
7h 18m
1 stop
Depart: Thu Jan 29 2015 Return: Wed Feb 4 2015 Trip spans 7 days
Delta
Delta
IAD
9:59a
SEA
5:33p
7h 34m
1 stop
SEA
7:20a
IAD
2:27p
7h 07m
1 stop
Depart: Fri Jan 30 2015 Return: Tue Feb 3 2015 Trip spans 5 days
Delta
Delta
IAD
1:20a
SEA
8:54a
7h 34m
1 stop
SEA
5:55p
IAD
1:13a
7h 18m
1 stop
Depart: Sat Jan 31 2015 Return: Fri Feb 6 2015 Trip spans 7 days
Delta
Delta
IAD
12:13p
SEA
8:17p
8h 04m
1 stop
SEA
7:20a
IAD
2:27p
7h 07m
1 stop
Depart: Sun Feb 1 2015 Return: Sat Feb 7 2015 Trip spans 7 days
Delta
Delta
IAD
2:00a
SEA
1:27p
11h 27m
1 stop
SEA
7:20a
IAD
2:26p
7h 06m
1 stop
Depart: Mon Feb 2 2015 Return: Sun Feb 8 2015 Trip spans 7 days
Delta
Delta
IAD
9:59a
SEA
7:37p
9h 38m
1 stop
SEA
5:55p
IAD
1:13a
7h 18m
1 stop
Depart: Tue Feb 3 2015 Return: Mon Feb 9 2015 Trip spans 7 days
Delta
Delta
IAD
10:50a
SEA
7:42p
8h 52m
1 stop
SEA
8:00a
IAD
3:05p
7h 05m
1 stop
Depart: Thu Feb 5 2015 Return: Sun Feb 8 2015 Trip spans 4 days
Delta
Delta
IAD
1:20a
SEA
8:54a
7h 34m
1 stop
SEA
5:55p
IAD
1:13a
7h 18m
1 stop
Depart: Tue Feb 10 2015 Return: Tue Feb 17 2015 Trip spans 8 days
Delta
Delta
IAD
9:59a
SEA
5:33p
7h 34m
1 stop
SEA
5:45p
IAD
1:48a
8h 03m
1 stop
Depart: Wed Feb 11 2015 Return: Tue Feb 17 2015 Trip spans 7 days
Delta
Delta
IAD
4:40a
SEA
1:27p
8h 47m
1 stop
SEA
5:45p
IAD
1:48a
8h 03m
1 stop
Depart: Mon Feb 16 2015 Return: Tue Feb 17 2015 Trip spans 2 days
Delta
Delta
IAD
10:00a
SEA
7:29p
9h 29m
1 stop
SEA
5:45p
IAD
1:48a
8h 03m
1 stop
Depart: Wed Jan 7 2015 Return: Thu Jan 8 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 Feb 12 2015 Return: Tue Feb 17 2015 Trip spans 6 days
Virgin America
Virgin America
IAD
4:00a
SEA
1:45p
9h 45m
1 stop
SEA
5:50a
IAD
2:00p
8h 10m
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
6:50p
IAD
4:21a
9h 31m
1 stop
Depart: Thu May 7 2015 Return: Tue May 12 2015 Trip spans 6 days
Multiple Airlines
Multiple Airlines
IAD
2:45a
SEA
11:21a
8h 36m
1 stop
SEA
4:10p
IAD
12:50a
8h 40m
1 stop
Depart: Mon Mar 2 2015 Return: Sun Mar 15 2015 Trip spans 13 days
JetBlue Airways
JetBlue Airways
IAD
7:50a
SEA
8:06p
12h 16m
1 stop
SEA
6:59p
IAD
5:13a
10h 14m
1 stop
Depart: Sun Mar 15 2015 Return: Sun Mar 22 2015 Trip spans 8 days
Alaska Airlines
Alaska Airlines
IAD
2:20p
SEA
8:15p
5h 55m
nonstop
SEA
5:20a
IAD
10:20a
5h 00m
nonstop
Depart: Tue Mar 24 2015 Return: Tue Mar 31 2015 Trip spans 8 days
United
United
IAD
8:30a
SEA
2:15p
5h 45m
nonstop
SEA
6:35p
IAD
11:31p
4h 56m
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 8:09 am 11:07 am Dec 27 - Dec 27
282 8:10 am 11:11 am Dec 19 - Dec 29
282 8:10 am 11:11 am Jan 2 - Jan 5
282 8:10 am 11:11 am Dec 30 - Dec 30
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
429 12:30 pm 3:30 pm Dec 25 - Dec 25
357 4:25 pm 7:23 pm Jan 3 - Jan 3
357 4:25 pm 7:23 pm Dec 27 - Dec 27
1158 5:41 pm 8:41 pm Dec 26 - Dec 26
1596 5:41 pm 8:41 pm Dec 28 - Dec 28
1615 5:41 pm 8:41 pm Jan 2 - Jan 2
1615 5:41 pm 8:41 pm Jan 1 - Jan 1
1615 5:41 pm 8:41 pm Dec 30 - Dec 30
1615 5:41 pm 8:41 pm Dec 29 - Dec 29
1615 5:41 pm 8:41 pm Jan 5 - Jan 5
1694 5:41 pm 8:41 pm Dec 31 - Dec 31
1694 5:41 pm 8:41 pm Dec 25 - Dec 25
1615 5:56 pm 8:53 pm Jan 9 - Jan 9
1615 5:56 pm 8:53 pm Jan 8 - Jan 12
1615 5:56 pm 8:53 pm Jan 6 - Jan 6
1615 5:56 pm 8:53 pm Jan 15 - Jan 22
1615 5:56 pm 8:53 pm Jan 16 - Jan 16
1615 5:56 pm 8:53 pm Jan 20 - Jan 20
1615 5:56 pm 8:53 pm Jan 23 - Jan 23
1615 5:56 pm 8:53 pm Jan 13 - Jan 13
1445 5:57 pm 8:54 pm Jan 14 - Jan 14
1615 5:57 pm 8:54 pm Jan 7 - Jan 7
1615 5:57 pm 8:54 pm Jan 21 - Feb 11
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
1259 6:56 pm 9:56 pm Dec 27 - Dec 27
1615 6:57 pm 9:54 pm Jan 10 - Feb 7
Airports
Origin

Washington
$260
Destination

Seattle
$260