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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: Sun Dec 28 2014 Return: Tue Jan 6 2015 Trip spans 10 days
Frontier
Frontier
IAD
5:25p
STL
7:45p
2h 20m
nonstop
STL
9:25a
IAD
11:25a
2h 00m
nonstop
Depart: Tue Dec 30 2014 Return: Tue Jan 6 2015 Trip spans 8 days
Frontier
Frontier
IAD
1:05p
STL
3:25p
2h 20m
nonstop
STL
9:25a
IAD
11:25a
2h 00m
nonstop
Depart: Thu Jan 1 2015 Return: Sun Jan 4 2015 Trip spans 4 days
Frontier
Frontier
IAD
1:05p
STL
3:25p
2h 20m
nonstop
STL
9:25a
IAD
11:25a
2h 00m
nonstop
Depart: Sun Jan 4 2015 Return: Mon Jan 5 2015 Trip spans 2 days
Multiple Airlines
Multiple Airlines
IAD
5:25p
STL
7:45p
2h 20m
nonstop
STL
3:17a
IAD
5:15a
1h 58m
nonstop
Depart: Mon Jan 5 2015 Return: Tue Jan 6 2015 Trip spans 2 days
Multiple Airlines
Multiple Airlines
IAD
5:00p
STL
7:22p
2h 22m
nonstop
STL
9:25a
IAD
11:25a
2h 00m
nonstop
Depart: Sat Dec 27 2014 Return: Tue Jan 6 2015 Trip spans 11 days
Multiple Airlines
Multiple Airlines
IAD
12:25p
STL
4:49p
4h 24m
1 stop
STL
9:25a
IAD
11:25a
2h 00m
nonstop
Depart: Mon Dec 29 2014 Return: Sun Jan 4 2015 Trip spans 7 days
Multiple Airlines
Multiple Airlines
IAD
4:20a
STL
8:12a
3h 52m
1 stop
STL
9:25a
IAD
11:25a
2h 00m
nonstop
Depart: Wed Jan 28 2015 Return: Tue Feb 3 2015 Trip spans 7 days
American Airlines
American Airlines
IAD
8:07a
STL
2:13p
6h 06m
1 stop
STL
11:27a
IAD
5:53p
6h 26m
1 stop
Depart: Sat Jan 31 2015 Return: Tue Feb 3 2015 Trip spans 4 days
American Airlines
American Airlines
IAD
4:01a
STL
10:04a
6h 03m
1 stop
STL
11:27a
IAD
5:53p
6h 26m
1 stop
Depart: Wed Feb 4 2015 Return: Wed Feb 11 2015 Trip spans 8 days
American Airlines
American Airlines
IAD
8:07a
STL
2:13p
6h 06m
1 stop
STL
11:27a
IAD
5:53p
6h 26m
1 stop
Depart: Thu Jan 8 2015 Return: Mon Jan 12 2015 Trip spans 5 days
United
United
IAD
5:00p
STL
7:26p
2h 26m
nonstop
STL
6:44a
IAD
8:41a
1h 57m
nonstop
Depart: Sat Jan 10 2015 Return: Tue Jan 13 2015 Trip spans 4 days
United
United
IAD
3:11a
STL
5:36a
2h 25m
nonstop
STL
3:09a
IAD
5:09a
2h 00m
nonstop
Depart: Mon Jan 12 2015 Return: Thu Jan 15 2015 Trip spans 4 days
United
United
IAD
5:00p
STL
7:26p
2h 26m
nonstop
STL
3:09a
IAD
5:09a
2h 00m
nonstop
Depart: Tue Jan 13 2015 Return: Sat Jan 17 2015 Trip spans 5 days
United
United
IAD
3:11a
STL
5:36a
2h 25m
nonstop
STL
9:15a
IAD
11:12a
1h 57m
nonstop
Depart: Wed Jan 14 2015 Return: Sat Jan 17 2015 Trip spans 4 days
United
United
IAD
5:00p
STL
7:26p
2h 26m
nonstop
STL
1:17p
IAD
3:10p
1h 53m
nonstop
Depart: Thu Jan 15 2015 Return: Sat Jan 17 2015 Trip spans 3 days
United
United
IAD
5:00p
STL
7:26p
2h 26m
nonstop
STL
9:15a
IAD
11:12a
1h 57m
nonstop
Depart: Sat Jan 17 2015 Return: Wed Jan 21 2015 Trip spans 5 days
United
United
IAD
3:11a
STL
5:36a
2h 25m
nonstop
STL
9:22a
IAD
11:19a
1h 57m
nonstop
Depart: Tue Jan 20 2015 Return: Wed Jan 21 2015 Trip spans 2 days
United
United
IAD
7:30a
STL
9:52a
2h 22m
nonstop
STL
3:09a
IAD
5:09a
2h 00m
nonstop
Depart: Wed Mar 11 2015 Return: Sun Mar 22 2015 Trip spans 12 days
US Airways
US Airways
IAD
1:20a
STL
5:46a
4h 26m
1 stop
STL
3:50a
IAD
8:00a
4h 10m
1 stop
Depart: Mon Jun 29 2015 Return: Mon Jul 6 2015 Trip spans 8 days
Delta
Delta
IAD
3:00a
STL
7:50a
4h 50m
1 stop
STL
12:30p
IAD
4:15p
3h 45m
1 stop
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 8:05 am 9:28 am Jan 4 - Jan 4
3420 8:10 am 9:33 am Dec 20 - Jan 3
3420 8:10 am 9:33 am Jan 5 - Jan 5
3420 8:10 am 9:33 am Dec 22 - Dec 29
3420 8:10 am 9:33 am Dec 19 - Jan 2
3420 8:10 am 9:33 am Dec 30 - Dec 30
3420 8:11 am 9:36 am Jan 6 - Jan 20
3420 8:11 am 9:36 am Jan 24 - Feb 8
3420 8:11 am 9:36 am Jan 27 - Feb 3
3420 8:11 am 9:36 am Jan 8 - Jan 23
3420 8:11 am 9:36 am Jan 12 - Jan 12
3420 8:11 am 9:36 am Jan 10 - Jan 17
3420 8:11 am 9:36 am Jan 21 - Jan 21
6112 8:11 am 9:36 am Jan 19 - Jan 19
3420 8:12 am 9:37 am Jan 26 - Jan 29
3267 12:21 pm 1:43 pm Jan 5 - Jan 5
3357 12:21 pm 1:43 pm Jan 4 - Jan 4
4264 12:21 pm 1:43 pm Jan 1 - Jan 1
4264 12:21 pm 1:43 pm Dec 29 - Jan 2
3369 12:30 pm 1:52 pm Jan 7 - Jan 15
3369 12:30 pm 1:52 pm Jan 21 - Feb 2
3394 12:30 pm 1:52 pm Jan 27 - Jan 27
3394 12:30 pm 1:52 pm Jan 9 - Jan 16
3394 12:30 pm 1:52 pm Jan 6 - Jan 20
3394 12:30 pm 1:52 pm Jan 19 - Jan 23
3357 12:35 pm 1:57 pm Jan 11 - Jan 11
3357 12:35 pm 1:57 pm Jan 25 - Jan 25
3361 12:35 pm 1:57 pm Jan 18 - Jan 18
3434 5:00 pm 6:19 pm Dec 31 - Dec 31
3434 5:00 pm 6:19 pm Dec 26 - Jan 2
3434 5:00 pm 6:19 pm Dec 30 - Dec 30
3434 5:00 pm 6:19 pm Jan 4 - Jan 4
3434 5:00 pm 6:19 pm Jan 1 - Jan 1
4121 5:00 pm 6:19 pm Jan 3 - Jan 3
6112 5:00 pm 6:19 pm Jan 5 - Jan 5
3361 5:14 pm 6:40 pm Jan 11 - Jan 11
3434 5:14 pm 6:40 pm Jan 19 - Jan 25
3434 5:14 pm 6:40 pm Jan 6 - Jan 17
3434 5:14 pm 6:40 pm Jan 18 - Jan 24
3434 5:14 pm 6:40 pm Jan 26 - Feb 11
3427 9:52 pm 11:14 pm Jan 2 - Jan 4
3427 9:52 pm 11:14 pm Dec 22 - Dec 29
3427 9:52 pm 11:14 pm Dec 30 - Jan 1
3427 9:54 pm 11:20 pm Jan 10 - Feb 7
3427 10:00 pm 11:26 pm Jan 8 - Feb 13
3427 10:00 pm 11:22 pm Jan 5 - Jan 5
3427 10:00 pm 11:26 pm Jan 6 - Feb 17
3427 10:00 pm 11:22 pm Dec 20 - Jan 3
Airports
Origin

Washington
$105
Destination

St Louis
$105