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Find Flight Deals from Washington to St Louis Lambert-St Louis (WAS - STL)

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

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

(Round-trip)
Depart: Sun Jan 4 2015 Return: Tue Jan 6 2015 Trip spans 3 days
Frontier
Frontier
IAD
5:25p
STL
7:45p
2h 20m
nonstop
STL
9:25a
IAD
11:25a
2h 00m
nonstop
Depart: Thu Jan 1 2015 Return: Tue Jan 6 2015 Trip spans 6 days
Frontier
Frontier
IAD
1:05p
STL
3:25p
2h 20m
nonstop
STL
9:25a
IAD
11:25a
2h 00m
nonstop
Depart: Sun Dec 28 2014 Return: Sun Jan 4 2015 Trip spans 8 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: Tue Jan 6 2015 Return: Wed Jan 7 2015 Trip spans 2 days
Multiple Airlines
Multiple Airlines
IAD
1:05p
STL
3:25p
2h 20m
nonstop
STL
1:17p
IAD
3:10p
1h 53m
nonstop
Depart: Fri Jan 2 2015 Return: Tue Jan 6 2015 Trip spans 5 days
Multiple Airlines
Multiple Airlines
IAD
4:52p
STL
7:14p
2h 22m
nonstop
STL
9:25a
IAD
11:25a
2h 00m
nonstop
Depart: Tue Jan 20 2015 Return: Wed Jan 21 2015 Trip spans 2 days
American Airlines
American Airlines
DCA
3:44a
STL
10:04a
6h 20m
1 stop
STL
9:44a
DCA
3:41p
5h 57m
1 stop
Depart: Wed Jan 21 2015 Return: Wed Jan 28 2015 Trip spans 8 days
American Airlines
American Airlines
DCA
3:44a
STL
10:04a
6h 20m
1 stop
STL
3:00a
DCA
9:10a
6h 10m
1 stop
Depart: Sat Jan 31 2015 Return: Tue Feb 3 2015 Trip spans 4 days
American Airlines
American Airlines
DCA
7:31a
STL
2:13p
6h 42m
1 stop
STL
5:38a
DCA
11:16a
5h 38m
1 stop
Depart: Thu Jan 15 2015 Return: Sat Jan 17 2015 Trip spans 3 days
American Airlines
American Airlines
DCA
11:25a
STL
1:43p
2h 18m
nonstop
STL
9:44a
DCA
3:41p
5h 57m
1 stop
Depart: Wed Feb 4 2015 Return: Mon Feb 9 2015 Trip spans 6 days
American Airlines
American Airlines
DCA
11:00a
STL
4:49p
5h 49m
1 stop
STL
11:05a
DCA
1:00p
1h 55m
nonstop
Depart: Thu Feb 5 2015 Return: Tue Feb 10 2015 Trip spans 6 days
American Airlines
American Airlines
DCA
8:59a
STL
11:18a
2h 19m
nonstop
STL
9:44a
DCA
3:41p
5h 57m
1 stop
Depart: Thu Jan 8 2015 Return: Sat Jan 10 2015 Trip spans 3 days
United
United
IAD
3:11a
STL
5:36a
2h 25m
nonstop
STL
1:17p
IAD
3:10p
1h 53m
nonstop
Depart: Wed Dec 31 2014 Return: Sun Jan 4 2015 Trip spans 5 days
Multiple Airlines
Multiple Airlines
IAD
12:00p
STL
2:19p
2h 19m
nonstop
STL
9:25a
IAD
11:25a
2h 00m
nonstop
Depart: Wed Jan 7 2015 Return: Thu Jan 8 2015 Trip spans 2 days
American Airlines
American Airlines
DCA
3:30a
STL
5:48a
2h 18m
nonstop
STL
1:30p
DCA
3:24p
1h 54m
nonstop
Depart: Thu Mar 5 2015 Return: Mon Mar 9 2015 Trip spans 4 days
US Airways
US Airways
DCA
12:20p
STL
5:05p
4h 45m
1 stop
STL
2:05p
DCA
6:27p
4h 22m
1 stop
Depart: Thu Jun 18 2015 Return: Tue Jun 23 2015 Trip spans 6 days
Multiple Airlines
Multiple Airlines
DCA
2:55a
STL
6:52a
3h 57m
1 stop
STL
11:55a
DCA
1:48p
1h 53m
nonstop
Depart: Thu Apr 23 2015 Return: Sun Apr 26 2015 Trip spans 4 days
US Airways
US Airways
IAD
9:36a
STL
4:13p
6h 37m
1 stop
STL
1:59a
IAD
8:01a
6h 02m
1 stop
Depart: Fri Apr 3 2015 Return: Mon Apr 6 2015 Trip spans 4 days
Delta
Delta
DCA
3:00a
STL
7:50a
4h 50m
1 stop
STL
1:00p
DCA
5:00p
4h 00m
1 stop
Depart: Fri Jun 5 2015 Return: Thu Jun 11 2015 Trip spans 7 days
United
United
DCA
3:00a
STL
7:26a
4h 26m
1 stop
STL
5:54a
DCA
10:44a
4h 50m
1 stop
Change your search
Direct flights WAS to STL on American Airlines
Flight # Depart DCA Arrive STL Sun Mon Tue Wed Thu Fri Sat Valid Between
4285 8:15 am 9:33 am Jan 11 - Feb 8
4251 8:30 am 9:45 am Jan 4 - Jan 5
4285 8:30 am 9:48 am Jan 6 - Feb 13
4369 8:30 am 9:48 am Jan 10 - Feb 7
4285 10:10 am 11:30 am Dec 31 - Jan 5
4285 10:50 am 12:10 pm Dec 28 - Jan 4
4369 1:59 pm 3:18 pm Jan 11 - Feb 8
4369 1:59 pm 3:18 pm Jan 6 - Mar 6
4283 2:05 pm 3:25 pm Dec 31 - Jan 5
4356 4:25 pm 5:43 pm Jan 6 - Mar 6
4356 4:35 pm 5:50 pm Dec 31 - Jan 5
Airports
Origin

Washington
only $115
only $272
Destination

St Louis
$115