Browse Origins:
Browse Destinations:

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

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

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

(Round-trip)
Depart: Tue Apr 28 2015 Return: Wed Apr 29 2015 Trip spans 2 days
American Airlines
American Airlines
SEA
11:55a
IAD
11:04p
11h 09m
1 stop
IAD
4:05a
SEA
1:45p
9h 40m
1 stop
Depart: Mon May 4 2015 Return: Tue May 5 2015 Trip spans 2 days
American Airlines
American Airlines
SEA
12:55p
IAD
11:04p
10h 09m
1 stop
IAD
4:05a
SEA
1:45p
9h 40m
1 stop
Depart: Tue Apr 21 2015 Return: Sat Apr 25 2015 Trip spans 5 days
American Airlines
American Airlines
SEA
8:15p
IAD
4:10a
7h 55m
1 stop
IAD
1:20a
SEA
9:08a
7h 48m
1 stop
Depart: Mon Apr 20 2015 Return: Tue Apr 21 2015 Trip spans 2 days
American Airlines
American Airlines
SEA
8:15p
IAD
4:10a
7h 55m
1 stop
IAD
2:10p
SEA
11:05p
8h 55m
1 stop
Depart: Mon Apr 27 2015 Return: Thu Apr 30 2015 Trip spans 4 days
US Airways
US Airways
SEA
6:05p
IAD
1:46a
7h 41m
1 stop
IAD
1:20a
SEA
9:08a
7h 48m
1 stop
Depart: Tue Jun 2 2015 Return: Tue Jun 9 2015 Trip spans 8 days
American Airlines
American Airlines
SEA
6:05p
IAD
3:34a
9h 29m
1 stop
IAD
3:50p
SEA
11:40p
7h 50m
1 stop
Depart: Wed Jun 3 2015 Return: Wed Jun 10 2015 Trip spans 8 days
American Airlines
American Airlines
SEA
7:10a
IAD
4:29p
9h 19m
1 stop
IAD
3:50p
SEA
11:40p
7h 50m
1 stop
Depart: Mon Jun 8 2015 Return: Tue Jun 16 2015 Trip spans 9 days
US Airways
US Airways
SEA
8:25p
IAD
3:37a
7h 12m
1 stop
IAD
3:50p
SEA
11:40p
7h 50m
1 stop
Depart: Tue Jun 9 2015 Return: Tue Jun 16 2015 Trip spans 8 days
US Airways
US Airways
SEA
8:25p
IAD
3:37a
7h 12m
1 stop
IAD
3:50p
SEA
11:40p
7h 50m
1 stop
Depart: Fri Jun 5 2015 Return: Tue Jun 9 2015 Trip spans 5 days
American Airlines
American Airlines
SEA
8:25p
IAD
3:37a
7h 12m
1 stop
IAD
7:07a
SEA
4:43p
9h 36m
1 stop
Depart: Sat Jun 6 2015 Return: Tue Jun 9 2015 Trip spans 4 days
American Airlines
American Airlines
SEA
3:00a
IAD
10:21a
7h 21m
1 stop
IAD
7:07a
SEA
4:43p
9h 36m
1 stop
Depart: Sun Jun 7 2015 Return: Tue Jun 9 2015 Trip spans 3 days
US Airways
US Airways
SEA
8:25p
IAD
3:37a
7h 12m
1 stop
IAD
3:50p
SEA
11:40p
7h 50m
1 stop
Depart: Thu Jun 4 2015 Return: Tue Jun 9 2015 Trip spans 6 days
American Airlines
American Airlines
SEA
9:05a
IAD
4:22p
7h 17m
1 stop
IAD
3:50p
SEA
11:40p
7h 50m
1 stop
Depart: Mon Jun 1 2015 Return: Mon Jun 8 2015 Trip spans 8 days
American Airlines
American Airlines
SEA
6:05p
IAD
3:34a
9h 29m
1 stop
IAD
1:55p
SEA
11:40p
9h 45m
1 stop
Depart: Sat Apr 18 2015 Return: Wed Apr 22 2015 Trip spans 5 days
United
United
SEA
5:43p
IAD
10:49p
5h 06m
nonstop
IAD
8:30a
SEA
2:18p
5h 48m
nonstop
Depart: Wed Apr 22 2015 Return: Thu Apr 23 2015 Trip spans 2 days
Alaska Airlines
Alaska Airlines
SEA
5:20a
IAD
10:20a
5h 00m
nonstop
IAD
2:20p
SEA
8:15p
5h 55m
nonstop
Depart: Fri Apr 24 2015 Return: Tue Apr 28 2015 Trip spans 5 days
Alaska Airlines
Alaska Airlines
SEA
5:20a
IAD
10:20a
5h 00m
nonstop
IAD
2:20p
SEA
8:15p
5h 55m
nonstop
Depart: Wed Apr 15 2015 Return: Tue Apr 21 2015 Trip spans 7 days
Virgin America
Virgin America
SEA
4:10p
IAD
12:45a
8h 35m
1 stop
IAD
3:15a
SEA
1:55p
10h 40m
1 stop
Depart: Fri May 29 2015 Return: Sat Jun 6 2015 Trip spans 9 days
Delta
Delta
SEA
8:35p
IAD
5:25a
8h 50m
1 stop
IAD
3:05p
SEA
10:12p
7h 07m
1 stop
Depart: Sat Sep 26 2015 Return: Tue Oct 6 2015 Trip spans 11 days
JetBlue Airways
JetBlue Airways
SEA
5:50p
IAD
2:09a
8h 19m
1 stop
IAD
2:55a
SEA
11:18a
8h 23m
1 stop
Direct flights SEA to IAD on United
Flight # Depart SEA Arrive IAD Sun Mon Tue Wed Thu Fri Sat Valid Between
1294 6:00 am 2:01 pm Apr 19 - Apr 19
1294 6:00 am 2:01 pm May 3 - May 3
511 6:00 am 1:56 pm Apr 12 - Apr 12
511 6:00 am 1:59 pm Apr 26 - Apr 26
1984 7:25 am 3:26 pm Apr 7 - Apr 7
511 7:25 am 3:19 pm Mar 28 - Apr 4
1058 8:00 am 4:01 pm Apr 15 - Apr 21
1058 8:00 am 4:01 pm Apr 14 - Apr 14
1058 8:00 am 4:01 pm Apr 22 - Apr 29
1058 8:00 am 4:01 pm Apr 28 - Apr 28
1402 8:00 am 4:01 pm Apr 23 - Apr 23
511 8:00 am 3:56 pm Apr 9 - Apr 20
511 8:00 am 3:59 pm Apr 8 - Apr 8
511 8:00 am 3:59 pm May 2 - May 2
511 8:00 am 3:56 pm Apr 24 - May 1
511 8:00 am 3:54 pm Apr 5 - Apr 5
511 8:00 am 3:56 pm May 4 - May 5
511 8:10 am 4:04 pm Apr 6 - Apr 6
1151 1:14 pm 9:15 pm May 3 - May 3
1151 1:14 pm 9:15 pm Apr 26 - Apr 26
1151 1:14 pm 9:15 pm Apr 12 - Apr 19
260 1:21 pm 9:20 pm Apr 7 - May 5
260 1:21 pm 9:20 pm Apr 9 - May 4
260 1:26 pm 9:20 pm Apr 5 - Apr 5
642 1:31 pm 9:25 pm Apr 6 - Apr 6
1634 9:41 pm 5:47 am Apr 25 - Apr 25
262 9:41 pm 5:45 am Apr 28 - May 5
262 9:41 pm 5:45 am Apr 19 - May 3
262 9:41 pm 5:45 am Apr 30 - May 4
262 9:41 pm 5:45 am Apr 9 - Apr 27
262 9:41 pm 5:45 am Apr 7 - Apr 12
262 9:41 pm 5:45 am Apr 15 - Apr 22
1634 9:43 pm 5:49 am Apr 11 - Apr 18
1634 9:43 pm 5:49 am May 2 - May 2
1634 9:46 pm 5:52 am Apr 8 - Apr 8
1083 10:35 pm 6:31 am Apr 4 - Apr 4
262 10:35 pm 6:26 am Apr 5 - Apr 5
1607 10:37 pm 6:33 am Apr 6 - Apr 6
Airports
Origin

Seattle
$258
Destination

Washington
$258