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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: Wed Mar 25 2015 Return: Tue Mar 31 2015 Trip spans 7 days
United
United
SEA
4:10a
IAD
9:04a
4h 54m
nonstop
IAD
4:15a
SEA
10:02a
5h 47m
nonstop
Depart: Tue Mar 31 2015 Return: Wed Apr 1 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: Mon Apr 13 2015 Return: Wed Apr 15 2015 Trip spans 3 days
American Airlines
American Airlines
SEA
6:05p
IAD
1:46a
7h 41m
1 stop
IAD
1:20a
SEA
9:08a
7h 48m
1 stop
Depart: Wed Apr 15 2015 Return: Thu Apr 16 2015 Trip spans 2 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: Wed Apr 1 2015 Return: Wed Apr 8 2015 Trip spans 8 days
United
United
SEA
9:31a
IAD
2:25p
4h 54m
nonstop
IAD
4:15a
SEA
10:03a
5h 48m
nonstop
Depart: Wed Apr 8 2015 Return: Tue Apr 14 2015 Trip spans 7 days
United
United
SEA
5:46p
IAD
10:52p
5h 06m
nonstop
IAD
1:25p
SEA
7:15p
5h 50m
nonstop
Depart: Tue Apr 14 2015 Return: Wed Apr 15 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: Mon Apr 20 2015 Return: Thu Apr 23 2015 Trip spans 4 days
American Airlines
American Airlines
SEA
6:05p
IAD
3:29a
9h 24m
1 stop
IAD
1:20a
SEA
9:08a
7h 48m
1 stop
Depart: Tue Apr 21 2015 Return: Sat Apr 25 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 22 2015 Return: Thu Apr 23 2015 Trip spans 2 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: Thu Apr 23 2015 Return: Mon Apr 27 2015 Trip spans 5 days
American Airlines
American Airlines
SEA
7:10a
IAD
4:29p
9h 19m
1 stop
IAD
1:20a
SEA
9:08a
7h 48m
1 stop
Depart: Mon Apr 27 2015 Return: Tue Apr 28 2015 Trip spans 2 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 Apr 28 2015 Return: Wed Apr 29 2015 Trip spans 2 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: Wed Apr 29 2015 Return: Thu Apr 30 2015 Trip spans 2 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: Sat May 2 2015 Return: Fri May 8 2015 Trip spans 7 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: Mon May 4 2015 Return: Fri May 8 2015 Trip spans 5 days
American Airlines
American Airlines
SEA
6:05p
IAD
3:29a
9h 24m
1 stop
IAD
1:20a
SEA
9:08a
7h 48m
1 stop
Depart: Fri May 1 2015 Return: Tue May 5 2015 Trip spans 5 days
Multiple Airlines
Multiple Airlines
SEA
5:20a
IAD
10:20a
5h 00m
nonstop
IAD
4:05a
SEA
1:45p
9h 40m
1 stop
Depart: Wed Mar 18 2015 Return: Wed Apr 15 2015 Trip spans 29 days
Virgin America
Virgin America
SEA
6:40a
IAD
3:15p
8h 35m
1 stop
IAD
3:15a
SEA
1:55p
10h 40m
1 stop
Depart: Mon Mar 23 2015 Return: Tue Apr 7 2015 Trip spans 16 days
Delta
Delta
SEA
8:40p
IAD
5:29a
8h 49m
1 stop
IAD
1:55p
SEA
10:11p
8h 16m
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
Direct flights SEA to IAD on United
Flight # Depart SEA Arrive IAD Sun Mon Tue Wed Thu Fri Sat Valid Between
511 6:00 am 1:56 pm Apr 12 - Apr 12
1984 7:25 am 3:26 pm Apr 7 - Apr 7
511 7:25 am 3:19 pm Mar 14 - Apr 4
511 8:00 am 3:54 pm Mar 22 - Mar 22
511 8:00 am 3:56 pm Apr 9 - Apr 20
511 8:00 am 3:54 pm Apr 5 - Apr 5
511 8:00 am 3:54 pm Mar 29 - Mar 29
511 8:00 am 3:54 pm Mar 8 - Mar 15
511 8:00 am 3:59 pm Apr 8 - Apr 8
511 8:10 am 4:04 pm Mar 31 - Apr 1
511 8:10 am 4:04 pm Mar 19 - Mar 19
511 8:10 am 4:04 pm Mar 20 - Mar 27
511 8:10 am 4:04 pm Apr 3 - Apr 3
511 8:10 am 4:04 pm Apr 6 - Apr 6
511 8:10 am 4:04 pm Mar 24 - Mar 24
511 8:10 am 4:04 pm Mar 23 - Mar 30
511 8:10 am 4:04 pm Mar 12 - Mar 18
511 8:10 am 4:04 pm Mar 9 - Mar 13
511 8:10 am 4:04 pm Mar 26 - Apr 2
511 8:10 am 4:04 pm Mar 25 - Mar 25
511 8:10 am 4:04 pm Mar 17 - Mar 17
1151 1:14 pm 9:15 pm Apr 12 - Apr 12
260 1:21 pm 9:20 pm Apr 7 - May 5
260 1:21 pm 9:20 pm Apr 9 - May 4
260 1:25 pm 9:19 pm Mar 25 - Mar 25
260 1:26 pm 9:20 pm Mar 22 - Mar 29
260 1:26 pm 9:20 pm Apr 5 - Apr 5
262 1:26 pm 9:20 pm Mar 15 - Mar 15
260 1:31 pm 9:25 pm Mar 13 - Mar 13
260 1:31 pm 9:25 pm Mar 9 - Mar 16
260 1:31 pm 9:25 pm Mar 11 - Mar 18
260 1:31 pm 9:25 pm Apr 3 - Apr 3
260 1:31 pm 9:25 pm Apr 1 - Apr 1
260 1:31 pm 9:25 pm Mar 20 - Mar 27
262 1:31 pm 9:25 pm Mar 19 - Mar 19
262 1:31 pm 9:25 pm Mar 26 - Apr 2
419 1:31 pm 9:25 pm Mar 23 - Mar 23
419 1:31 pm 9:25 pm Mar 10 - Mar 24
419 1:31 pm 9:25 pm Mar 30 - Mar 30
642 1:31 pm 9:25 pm Apr 6 - Apr 6
762 1:31 pm 9:25 pm Mar 31 - Mar 31
262 9:41 pm 5:45 am Apr 7 - Apr 7
262 9:41 pm 5:45 am Apr 9 - Apr 27
262 9:41 pm 5:45 am Apr 12 - May 3
1634 9:43 pm 5:49 am Apr 11 - Apr 18
1634 9:46 pm 5:52 am Apr 8 - Apr 8
1024 10:35 pm 6:31 am Mar 13 - Mar 13
1046 10:35 pm 6:31 am Mar 28 - Mar 28
1083 10:35 pm 6:31 am Apr 4 - Apr 4
112 10:35 pm 6:31 am Mar 29 - Mar 29
112 10:35 pm 6:31 am Mar 20 - Mar 20
112 10:35 pm 6:31 am Mar 19 - Mar 26
112 10:35 pm 6:31 am Apr 3 - Apr 3
112 10:35 pm 6:31 am Apr 2 - Apr 2
1143 10:35 pm 6:31 am Mar 15 - Mar 15
1166 10:35 pm 6:31 am Mar 14 - Mar 14
1217 10:35 pm 6:31 am Mar 31 - Mar 31
1218 10:35 pm 6:31 am Mar 17 - Mar 17
1403 10:35 pm 6:31 am Mar 22 - Mar 22
1474 10:35 pm 6:31 am Mar 23 - Mar 23
1474 10:35 pm 6:31 am Mar 24 - Mar 24
1474 10:35 pm 6:31 am Mar 30 - Mar 30
1483 10:35 pm 6:31 am Mar 18 - Mar 18
1579 10:35 pm 6:31 am Mar 21 - Mar 21
1647 10:35 pm 6:31 am Mar 16 - Mar 16
1684 10:35 pm 6:31 am Mar 27 - Mar 27
262 10:35 pm 6:26 am Apr 5 - Apr 5
762 10:35 pm 6:26 am Apr 1 - Apr 1
1607 10:37 pm 6:33 am Apr 6 - Apr 6
1474 10:42 pm 6:38 am Mar 25 - Mar 25
Airports
Origin

Seattle
$257
Destination

Washington
$257