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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 May 4 2015 Return: Wed May 6 2015 Trip spans 3 days
US Airways
US Airways
SEA
6:05p
IAD
3:29a
9h 24m
1 stop
IAD
1:20a
SEA
9:08a
7h 48m
1 stop
Depart: Tue Aug 25 2015 Return: Sat Aug 29 2015 Trip spans 5 days
American Airlines
American Airlines
SEA
8:20p
IAD
6:01a
9h 41m
1 stop
IAD
1:20a
SEA
8:55a
7h 35m
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 Jul 21 2015 Return: Tue Aug 4 2015 Trip spans 15 days
US Airways
US Airways
SEA
8:25p
IAD
3:33a
7h 08m
1 stop
IAD
3:50p
SEA
11:40p
7h 50m
1 stop
Depart: Mon Aug 24 2015 Return: Wed Aug 26 2015 Trip spans 3 days
US Airways
US Airways
SEA
8:20p
IAD
3:30a
7h 10m
1 stop
IAD
1:20a
SEA
8:55a
7h 35m
1 stop
Depart: Wed Aug 26 2015 Return: Sat Aug 29 2015 Trip spans 4 days
American Airlines
American Airlines
SEA
9:05a
IAD
4:25p
7h 20m
1 stop
IAD
1:20a
SEA
8:55a
7h 35m
1 stop
Depart: Fri May 8 2015 Return: Tue May 12 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: Sat May 9 2015 Return: Tue May 12 2015 Trip spans 4 days
American Airlines
American Airlines
SEA
9:22a
IAD
5:28p
8h 06m
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
11:55a
IAD
11:04p
11h 09m
1 stop
IAD
3:50p
SEA
11:40p
7h 50m
1 stop
Depart: Tue May 5 2015 Return: Sat May 9 2015 Trip spans 5 days
American Airlines
American Airlines
SEA
8:15p
IAD
4:10a
7h 55m
1 stop
IAD
2:10p
SEA
11:04p
8h 54m
1 stop
Depart: Fri Jun 5 2015 Return: Tue Jun 9 2015 Trip spans 5 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: Mon Jun 8 2015 Return: Tue Jun 9 2015 Trip spans 2 days
American Airlines
American Airlines
SEA
6:10p
IAD
1:50a
7h 40m
1 stop
IAD
3:50p
SEA
11:40p
7h 50m
1 stop
Depart: Wed May 20 2015 Return: Mon Jun 8 2015 Trip spans 20 days
American Airlines
American Airlines
SEA
1:10a
IAD
10:26a
9h 16m
1 stop
IAD
3:50p
SEA
11:40p
7h 50m
1 stop
Depart: Sat May 30 2015 Return: Wed Jun 10 2015 Trip spans 12 days
American Airlines
American Airlines
SEA
1:10a
IAD
10:26a
9h 16m
1 stop
IAD
3:50p
SEA
11:40p
7h 50m
1 stop
Depart: Thu Jun 4 2015 Return: Mon Jun 8 2015 Trip spans 5 days
American Airlines
American Airlines
SEA
8:25p
IAD
3:37a
7h 12m
1 stop
IAD
3:50p
SEA
11:40p
7h 50m
1 stop
Depart: Tue May 12 2015 Return: Tue May 26 2015 Trip spans 15 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 29 2015 Return: Tue Jun 2 2015 Trip spans 5 days
Virgin America
Virgin America
SEA
1:40p
IAD
12:35a
10h 55m
1 stop
IAD
5:00a
SEA
3:55p
10h 55m
1 stop
Depart: Wed May 13 2015 Return: Mon May 18 2015 Trip spans 6 days
United
United
SEA
9:00a
IAD
2:04p
5h 04m
nonstop
IAD
2:48p
SEA
12:00a
9h 12m
1 stop
Depart: Mon Sep 14 2015 Return: Wed Sep 23 2015 Trip spans 10 days
JetBlue Airways
JetBlue Airways
SEA
7:14p
IAD
3:04a
7h 50m
1 stop
IAD
2:55a
SEA
11:18a
8h 23m
1 stop
Depart: Tue Jun 9 2015 Return: Tue Jun 16 2015 Trip spans 8 days
Delta
Delta
SEA
7:15p
IAD
2:23a
7h 08m
1 stop
IAD
3:12p
SEA
10:39p
7h 27m
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
1293 7:02 am 3:06 pm May 24 - May 24
511 7:02 am 3:04 pm May 10 - May 17
1058 8:00 am 4:01 pm Apr 22 - Apr 29
1058 8:00 am 4:01 pm Apr 28 - Apr 28
511 8:00 am 3:56 pm Apr 24 - May 1
511 8:00 am 3:59 pm May 2 - May 2
511 8:00 am 3:56 pm May 4 - May 5
1293 8:04 am 4:08 pm May 9 - May 30
1293 8:05 am 4:09 pm May 14 - May 14
1293 8:05 am 4:09 pm May 7 - May 13
1293 8:05 am 4:09 pm May 15 - Jun 3
2045 8:05 am 4:07 pm May 6 - May 6
1088 12:56 pm 9:02 pm May 17 - May 17
1088 12:56 pm 9:02 pm May 23 - May 23
1088 12:56 pm 9:02 pm May 9 - May 16
1926 12:56 pm 9:02 pm May 24 - May 24
260 12:56 pm 9:00 pm May 7 - May 29
1998 1:00 pm 9:04 pm May 6 - May 6
260 1:00 pm 9:04 pm May 12 - Jun 2
1151 1:14 pm 9:15 pm May 3 - May 3
260 1:21 pm 9:20 pm Apr 9 - May 4
260 1:21 pm 9:20 pm Apr 7 - May 5
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 May 3 - May 3
1634 9:43 pm 5:49 am May 2 - May 2
1685 9:47 pm 5:50 am May 10 - May 24
1685 9:48 pm 5:51 am May 23 - May 23
1685 9:48 pm 5:51 am May 9 - May 9
1685 9:48 pm 5:51 am May 16 - May 16
1685 9:50 pm 5:53 am May 14 - Jun 2
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