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Find Flight Deals from Washington Dulles Intl to St Louis Lambert-St Louis (IAD - STL)

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

Book cheap flights from Washington Dulles Intl to St Louis Lambert-St Louis

(Round-trip)
Depart: Wed Feb 11 2015 Return: Wed Mar 11 2015 Trip spans 28 days
United
United
IAD
7:30a
STL
9:52a
2h 22m
nonstop
STL
10:23a
IAD
12:20p
1h 57m
nonstop
Depart: Fri Feb 13 2015 Return: Sat Feb 21 2015 Trip spans 9 days
United
United
IAD
3:21a
STL
5:44a
2h 23m
nonstop
STL
3:00a
IAD
5:00a
2h 00m
nonstop
Depart: Sat Feb 14 2015 Return: Sat Feb 21 2015 Trip spans 8 days
United
United
IAD
3:21a
STL
5:44a
2h 23m
nonstop
STL
1:10p
IAD
3:10p
2h 00m
nonstop
Depart: Tue Feb 17 2015 Return: Wed Feb 18 2015 Trip spans 2 days
United
United
IAD
3:21a
STL
5:44a
2h 23m
nonstop
STL
6:34a
IAD
8:34a
2h 00m
nonstop
Depart: Wed Feb 18 2015 Return: Wed Feb 25 2015 Trip spans 8 days
United
United
IAD
12:05p
STL
2:31p
2h 26m
nonstop
STL
1:06p
IAD
3:06p
2h 00m
nonstop
Depart: Fri Feb 20 2015 Return: Sat Feb 21 2015 Trip spans 2 days
United
United
IAD
3:21a
STL
5:44a
2h 23m
nonstop
STL
1:10p
IAD
3:10p
2h 00m
nonstop
Depart: Sat Feb 21 2015 Return: Mon Feb 23 2015 Trip spans 3 days
United
United
IAD
3:21a
STL
5:44a
2h 23m
nonstop
STL
3:00a
IAD
5:00a
2h 00m
nonstop
Depart: Wed Feb 25 2015 Return: Sat Feb 28 2015 Trip spans 4 days
United
United
IAD
3:21a
STL
5:44a
2h 23m
nonstop
STL
1:10p
IAD
3:10p
2h 00m
nonstop
Depart: Mon Mar 2 2015 Return: Wed Mar 4 2015 Trip spans 3 days
United
United
IAD
5:00p
STL
7:26p
2h 26m
nonstop
STL
3:00a
IAD
5:00a
2h 00m
nonstop
Depart: Thu Mar 5 2015 Return: Mon Mar 9 2015 Trip spans 4 days
United
United
IAD
7:30a
STL
9:53a
2h 23m
nonstop
STL
2:38p
IAD
4:31p
1h 53m
nonstop
Depart: Sat Mar 7 2015 Return: Tue Mar 10 2015 Trip spans 3 days
United
United
IAD
5:06p
STL
7:29p
2h 23m
nonstop
STL
10:23a
IAD
12:20p
1h 57m
nonstop
Depart: Tue Mar 10 2015 Return: Tue Mar 17 2015 Trip spans 8 days
United
United
IAD
8:30a
STL
10:53a
2h 23m
nonstop
STL
2:38p
IAD
4:31p
1h 53m
nonstop
Depart: Wed Mar 11 2015 Return: Tue Mar 17 2015 Trip spans 7 days
United
United
IAD
6:06p
STL
8:29p
2h 23m
nonstop
STL
10:23a
IAD
12:20p
1h 57m
nonstop
Depart: Sat Mar 14 2015 Return: Tue Mar 17 2015 Trip spans 4 days
United
United
IAD
4:10a
STL
6:33a
2h 23m
nonstop
STL
10:23a
IAD
12:20p
1h 57m
nonstop
Depart: Sat Mar 21 2015 Return: Tue Mar 24 2015 Trip spans 4 days
United
United
IAD
4:02a
STL
6:25a
2h 23m
nonstop
STL
4:35a
IAD
6:32a
1h 57m
nonstop
Depart: Sat Mar 28 2015 Return: Tue Mar 31 2015 Trip spans 4 days
United
United
IAD
1:05p
STL
3:28p
2h 23m
nonstop
STL
10:23a
IAD
12:20p
1h 57m
nonstop
Depart: Tue Mar 31 2015 Return: Tue Apr 14 2015 Trip spans 15 days
United
United
IAD
6:06p
STL
8:29p
2h 23m
nonstop
STL
4:51a
IAD
6:50a
1h 59m
nonstop
Depart: Mon Feb 2 2015 Return: Tue Feb 3 2015 Trip spans 2 days
US Airways
US Airways
IAD
11:15a
STL
5:05p
5h 50m
1 stop
STL
6:06a
IAD
11:25a
5h 19m
1 stop
Depart: Thu May 14 2015 Return: Mon May 18 2015 Trip spans 5 days
Delta
Delta
IAD
2:00a
STL
7:50a
5h 50m
1 stop
STL
12:30p
IAD
4:15p
3h 45m
1 stop
Depart: Fri Mar 20 2015 Return: Mon Mar 23 2015 Trip spans 4 days
Multiple Airlines
Multiple Airlines
IAD
1:20a
STL
5:46a
4h 26m
1 stop
STL
10:23a
IAD
12:20p
1h 57m
nonstop
Change your search
Direct flights IAD to STL on United
Flight # Depart IAD Arrive STL Sun Mon Tue Wed Thu Fri Sat Valid Between
3420 8:10 am 9:33 am Mar 7 - Mar 7
3420 8:10 am 9:33 am Mar 5 - Mar 6
3420 8:11 am 9:36 am Jan 24 - Feb 8
3420 8:11 am 9:36 am Feb 4 - Feb 4
3420 8:11 am 9:36 am Feb 2 - Feb 9
3420 8:11 am 9:36 am Feb 10 - Feb 10
3420 8:11 am 9:36 am Feb 5 - Feb 6
3420 8:11 am 9:36 am Feb 11 - Feb 11
3420 8:21 am 9:44 am Mar 3 - Mar 3
3420 8:21 am 9:44 am Feb 12 - Mar 4
3420 8:21 am 9:44 am Feb 17 - Feb 24
3420 8:21 am 9:44 am Feb 16 - Mar 2
3420 8:21 am 9:44 am Feb 14 - Feb 28
3357 12:10 pm 1:34 pm Feb 12 - Feb 12
3357 12:30 pm 1:53 pm Mar 7 - Mar 7
3357 12:30 pm 1:53 pm Mar 5 - Mar 6
3369 12:30 pm 1:52 pm Jan 26 - Feb 11
3394 12:30 pm 1:52 pm Feb 6 - Feb 6
3394 12:30 pm 1:52 pm Feb 3 - Feb 10
3357 12:33 pm 1:59 pm Feb 22 - Mar 1
3369 12:33 pm 1:59 pm Feb 15 - Feb 15
3357 12:34 pm 2:00 pm Feb 14 - Feb 28
3369 12:34 pm 2:00 pm Feb 13 - Mar 4
3361 12:35 pm 1:57 pm Feb 8 - Feb 8
3369 12:41 pm 2:07 pm Feb 12 - Feb 12
3434 4:45 pm 6:08 pm Mar 5 - Mar 6
3355 5:00 pm 6:26 pm Feb 15 - Feb 15
3434 5:00 pm 6:26 pm Feb 12 - Feb 16
3434 5:00 pm 6:26 pm Feb 20 - Feb 27
3434 5:05 pm 6:31 pm Mar 2 - Mar 4
3434 5:05 pm 6:28 pm Mar 7 - Mar 7
3434 5:05 pm 6:31 pm Feb 22 - Mar 1
3434 5:05 pm 6:31 pm Feb 18 - Feb 26
3434 5:05 pm 6:31 pm Feb 17 - Feb 24
3434 5:09 pm 6:35 pm Feb 14 - Feb 28
3434 5:14 pm 6:40 pm Feb 3 - Feb 11
3434 5:14 pm 6:40 pm Feb 1 - Feb 8
3427 9:54 pm 11:20 pm Jan 24 - Feb 7
3427 10:00 pm 11:26 pm Jan 25 - Feb 13
3427 10:00 pm 11:26 pm Feb 14 - Feb 28
3427 10:00 pm 11:26 pm Mar 2 - Mar 2
3427 10:00 pm 11:26 pm Feb 24 - Feb 24
3427 10:00 pm 11:26 pm Mar 3 - Mar 3
3427 10:00 pm 11:26 pm Mar 1 - Mar 4
3427 10:00 pm 11:26 pm Jan 27 - Feb 17
3427 10:06 pm 11:29 pm Mar 5 - Mar 6
3427 10:06 pm 11:29 pm Mar 7 - Mar 7
Airports
Origin

Washington
$227
Destination

St Louis
$227