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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: Mon Apr 27 2015 Return: Sat May 2 2015 Trip spans 6 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: Sat May 2 2015 Return: Tue May 5 2015 Trip spans 4 days
American Airlines
American Airlines
SEA
7:10a
IAD
2:09p
6h 59m
1 stop
IAD
1:20a
SEA
9:08a
7h 48m
1 stop
Depart: Tue Apr 28 2015 Return: Sat May 2 2015 Trip spans 5 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: Mon May 4 2015 Return: Thu May 7 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: Wed May 6 2015 Return: Tue May 12 2015 Trip spans 7 days
US Airways
US Airways
SEA
7:10a
IAD
2:09p
6h 59m
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
1:46a
7h 41m
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
6:05p
IAD
1:50a
7h 45m
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: Wed Apr 15 2015 Return: Tue Apr 21 2015 Trip spans 7 days
American Airlines
American Airlines
SEA
7:50a
IAD
5:28p
9h 38m
1 stop
IAD
1:20a
SEA
9:08a
7h 48m
1 stop
Depart: Tue Apr 21 2015 Return: Thu Apr 23 2015 Trip spans 3 days
American Airlines
American Airlines
SEA
12:55p
IAD
11:04p
10h 09m
1 stop
IAD
1:20a
SEA
9:08a
7h 48m
1 stop
Depart: Wed Apr 22 2015 Return: Tue Apr 28 2015 Trip spans 7 days
American Airlines
American Airlines
SEA
7:50a
IAD
5:28p
9h 38m
1 stop
IAD
1:20a
SEA
9:08a
7h 48m
1 stop
Depart: Fri Apr 24 2015 Return: Tue Apr 28 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: Wed Apr 29 2015 Return: Sat May 2 2015 Trip spans 4 days
American Airlines
American Airlines
SEA
2:55a
IAD
10:26a
7h 31m
1 stop
IAD
1:20a
SEA
9:08a
7h 48m
1 stop
Depart: Tue May 5 2015 Return: Tue May 12 2015 Trip spans 8 days
American Airlines
American Airlines
SEA
12:55p
IAD
11:04p
10h 09m
1 stop
IAD
1:20a
SEA
9:08a
7h 48m
1 stop
Depart: Wed May 13 2015 Return: Wed May 27 2015 Trip spans 15 days
American Airlines
American Airlines
SEA
7:10a
IAD
4:29p
9h 19m
1 stop
IAD
2:10p
SEA
11:04p
8h 54m
1 stop
Depart: Mon Apr 13 2015 Return: Tue Apr 14 2015 Trip spans 2 days
Virgin America
Virgin America
SEA
2:55p
IAD
11:00p
8h 05m
1 stop
IAD
3:15a
SEA
1:55p
10h 40m
1 stop
Depart: Sat Apr 25 2015 Return: Tue Apr 28 2015 Trip spans 4 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 May 1 2015 Return: Tue May 5 2015 Trip spans 5 days
United
United
SEA
4:00a
IAD
8:56a
4h 56m
nonstop
IAD
8:30a
SEA
2:20p
5h 50m
nonstop
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
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 May 3 - May 3
1294 6:00 am 2:01 pm Apr 19 - Apr 19
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
1058 8:00 am 4:01 pm Apr 14 - Apr 14
1058 8:00 am 4:01 pm Apr 28 - Apr 28
1058 8:00 am 4:01 pm Apr 15 - Apr 21
1058 8:00 am 4:01 pm Apr 22 - Apr 29
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 3:56 pm May 4 - May 5
1293 8:05 am 4:09 pm May 7 - May 13
2045 8:05 am 4:07 pm May 6 - May 6
260 12:56 pm 9:00 pm May 7 - May 29
1998 1:00 pm 9:04 pm May 6 - May 6
1151 1:14 pm 9:15 pm Apr 26 - Apr 26
1151 1:14 pm 9:15 pm May 3 - May 3
1151 1:14 pm 9:15 pm Apr 12 - Apr 19
260 1:21 pm 9:20 pm Apr 9 - May 4
260 1:21 pm 9:20 pm Apr 7 - May 5
1634 9:41 pm 5:47 am Apr 25 - Apr 25
262 9:41 pm 5:45 am Apr 7 - Apr 12
262 9:41 pm 5:45 am Apr 28 - May 5
262 9:41 pm 5:45 am Apr 30 - May 4
262 9:41 pm 5:45 am Apr 19 - May 3
262 9:41 pm 5:45 am Apr 15 - Apr 22
262 9:41 pm 5:45 am Apr 9 - Apr 27
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
1685 9:50 pm 5:53 am May 6 - May 13
262 9:50 pm 5:51 am May 7 - May 7
Airports
Origin

Seattle
$257
Destination

Washington
$257