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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 Feb 11 2015 Return: Tue Mar 10 2015 Trip spans 27 days
US Airways
US Airways
SEA
8:25a
IAD
3:24p
6h 59m
1 stop
IAD
9:40a
SEA
8:00p
10h 20m
1 stop
Depart: Fri Feb 27 2015 Return: Mon Mar 2 2015 Trip spans 4 days
American Airlines
American Airlines
SEA
8:25a
IAD
3:24p
6h 59m
1 stop
IAD
8:40a
SEA
7:00p
10h 20m
1 stop
Depart: Tue Feb 17 2015 Return: Fri Feb 20 2015 Trip spans 4 days
US Airways
US Airways
SEA
5:20p
IAD
12:45a
7h 25m
1 stop
IAD
12:20a
SEA
10:22a
10h 02m
1 stop
Depart: Wed Feb 18 2015 Return: Fri Feb 20 2015 Trip spans 3 days
US Airways
US Airways
SEA
8:25a
IAD
3:24p
6h 59m
1 stop
IAD
12:20a
SEA
10:22a
10h 02m
1 stop
Depart: Fri Feb 20 2015 Return: Tue Feb 24 2015 Trip spans 5 days
US Airways
US Airways
SEA
5:20p
IAD
12:45a
7h 25m
1 stop
IAD
8:40a
SEA
7:00p
10h 20m
1 stop
Depart: Sat Feb 21 2015 Return: Tue Feb 24 2015 Trip spans 4 days
US Airways
US Airways
SEA
6:15a
IAD
1:07p
6h 52m
1 stop
IAD
8:40a
SEA
7:00p
10h 20m
1 stop
Depart: Mon Feb 23 2015 Return: Thu Feb 26 2015 Trip spans 4 days
US Airways
US Airways
SEA
5:20p
IAD
12:45a
7h 25m
1 stop
IAD
12:20a
SEA
10:22a
10h 02m
1 stop
Depart: Tue Feb 24 2015 Return: Thu Feb 26 2015 Trip spans 3 days
US Airways
US Airways
SEA
8:25a
IAD
3:24p
6h 59m
1 stop
IAD
12:20a
SEA
10:22a
10h 02m
1 stop
Depart: Wed Feb 25 2015 Return: Thu Feb 26 2015 Trip spans 2 days
US Airways
US Airways
SEA
8:25a
IAD
3:24p
6h 59m
1 stop
IAD
12:20a
SEA
10:22a
10h 02m
1 stop
Depart: Thu Feb 26 2015 Return: Tue Mar 3 2015 Trip spans 6 days
US Airways
US Airways
SEA
8:25a
IAD
3:24p
6h 59m
1 stop
IAD
8:40a
SEA
7:00p
10h 20m
1 stop
Depart: Sat Feb 28 2015 Return: Mon Mar 2 2015 Trip spans 3 days
US Airways
US Airways
SEA
6:15a
IAD
1:07p
6h 52m
1 stop
IAD
12:20a
SEA
10:22a
10h 02m
1 stop
Depart: Mon Mar 2 2015 Return: Tue Mar 3 2015 Trip spans 2 days
US Airways
US Airways
SEA
5:20p
IAD
12:45a
7h 25m
1 stop
IAD
8:40a
SEA
7:00p
10h 20m
1 stop
Depart: Tue Mar 3 2015 Return: Wed Mar 4 2015 Trip spans 2 days
US Airways
US Airways
SEA
5:20p
IAD
12:45a
7h 25m
1 stop
IAD
8:40a
SEA
7:00p
10h 20m
1 stop
Depart: Wed Mar 4 2015 Return: Tue Mar 10 2015 Trip spans 6 days
US Airways
US Airways
SEA
5:20p
IAD
12:45a
7h 25m
1 stop
IAD
1:20a
SEA
9:24a
8h 04m
1 stop
Depart: Tue May 5 2015 Return: Wed May 6 2015 Trip spans 2 days
Multiple Airlines
Multiple Airlines
SEA
7:10a
IAD
4:26p
9h 16m
1 stop
IAD
5:00a
SEA
3:55p
10h 55m
1 stop
Depart: Thu Feb 19 2015 Return: Wed Feb 25 2015 Trip spans 7 days
Virgin America
Virgin America
SEA
5:50a
IAD
2:00p
8h 10m
1 stop
IAD
4:00a
SEA
1:45p
9h 45m
1 stop
Depart: Mon Apr 27 2015 Return: Tue Apr 28 2015 Trip spans 2 days
United
United
SEA
5:10p
IAD
3:31a
10h 21m
2 stops
IAD
8:32a
SEA
2:22p
5h 50m
nonstop
Depart: Sun Mar 1 2015 Return: Mon Mar 9 2015 Trip spans 8 days
JetBlue Airways
JetBlue Airways
SEA
4:46p
IAD
1:26a
8h 40m
1 stop
IAD
9:24a
SEA
9:05p
11h 41m
1 stop
Depart: Thu Mar 12 2015 Return: Fri Mar 13 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: Sun May 17 2015 Return: Sun May 24 2015 Trip spans 8 days
Delta
Delta
SEA
5:15p
IAD
3:23a
10h 08m
1 stop
IAD
9:00a
SEA
5:50p
8h 50m
1 stop
Change your search
Direct flights SEA to IAD on United
Flight # Depart SEA Arrive IAD Sun Mon Tue Wed Thu Fri Sat Valid Between
511 7:25 am 3:19 pm Mar 7 - Mar 7
1632 7:38 am 3:34 pm Feb 21 - Feb 21
1632 7:38 am 3:34 pm Feb 28 - Feb 28
1632 7:38 am 3:34 pm Feb 14 - Feb 14
1038 7:44 am 3:40 pm Feb 17 - Feb 17
1041 7:44 am 3:40 pm Feb 25 - Feb 25
1150 7:44 am 3:40 pm Mar 2 - Mar 2
1181 7:44 am 3:40 pm Feb 18 - Feb 18
1187 7:44 am 3:40 pm Feb 13 - Feb 27
1443 7:44 am 3:40 pm Feb 23 - Feb 26
1443 7:44 am 3:40 pm Feb 12 - Feb 19
1579 7:44 am 3:40 pm Feb 22 - Feb 22
1579 7:44 am 3:40 pm Mar 4 - Mar 4
1745 7:44 am 3:40 pm Mar 1 - Mar 1
202 7:44 am 3:38 pm Feb 16 - Feb 16
511 7:44 am 3:38 pm Feb 15 - Feb 15
511 7:44 am 3:38 pm Feb 24 - Feb 24
511 7:44 am 3:38 pm Mar 3 - Mar 3
511 8:00 am 3:54 pm Mar 8 - Mar 8
1191 8:05 am 3:57 pm Feb 10 - Feb 10
1191 8:05 am 3:57 pm Feb 8 - Feb 8
1632 8:05 am 3:57 pm Feb 7 - Feb 7
1741 8:05 am 3:57 pm Feb 11 - Feb 11
1741 8:05 am 3:57 pm Feb 9 - Feb 9
1741 8:05 am 3:57 pm Feb 6 - Feb 6
511 8:10 am 4:04 pm Mar 6 - Mar 6
511 8:10 am 4:04 pm Mar 5 - Mar 5
511 8:10 am 4:04 pm Mar 9 - Mar 9
260 1:26 pm 9:20 pm Mar 8 - Mar 8
260 1:31 pm 9:25 pm Mar 9 - Mar 16
260 1:31 pm 9:25 pm Mar 6 - Mar 6
262 1:31 pm 9:25 pm Mar 5 - Mar 5
1260 10:27 pm 6:23 am Feb 27 - Feb 27
1260 10:27 pm 6:23 am Feb 13 - Feb 13
1260 10:27 pm 6:23 am Feb 20 - Feb 20
1111 10:35 pm 7:31 am Mar 7 - Mar 7
1474 10:35 pm 6:31 am Mar 6 - Mar 6
1483 10:35 pm 6:31 am Mar 5 - Mar 5
1582 10:35 pm 6:31 am Mar 8 - Mar 8
1647 10:35 pm 6:31 am Mar 9 - Mar 16
Airports
Origin

Seattle
$257
Destination

Washington
$257