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

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

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

(Round-trip)
Depart: Tue Aug 25 2015 Return: Wed Aug 26 2015 Trip spans 2 days
United
United
STL
6:42a
IAD
8:45a
2h 03m
nonstop
IAD
8:40a
STL
10:50a
2h 10m
nonstop
Depart: Tue Sep 8 2015 Return: Sat Sep 12 2015 Trip spans 5 days
United
United
STL
6:52a
IAD
8:55a
2h 03m
nonstop
IAD
4:20a
STL
6:32a
2h 12m
nonstop
Depart: Sat Sep 12 2015 Return: Sat Sep 19 2015 Trip spans 8 days
United
United
STL
9:39a
IAD
11:40a
2h 01m
nonstop
IAD
4:20a
STL
6:32a
2h 12m
nonstop
Depart: Mon Sep 21 2015 Return: Sat Sep 26 2015 Trip spans 6 days
United
United
STL
2:32p
IAD
4:35p
2h 03m
nonstop
IAD
6:00p
STL
8:11p
2h 11m
nonstop
Depart: Tue Sep 22 2015 Return: Sat Sep 26 2015 Trip spans 5 days
United
United
STL
4:30a
IAD
6:33a
2h 03m
nonstop
IAD
6:00p
STL
8:11p
2h 11m
nonstop
Depart: Wed Sep 23 2015 Return: Sat Sep 26 2015 Trip spans 4 days
United
United
STL
2:32p
IAD
4:35p
2h 03m
nonstop
IAD
6:00p
STL
8:11p
2h 11m
nonstop
Depart: Thu Sep 24 2015 Return: Sat Sep 26 2015 Trip spans 3 days
United
United
STL
6:52a
IAD
8:55a
2h 03m
nonstop
IAD
6:00p
STL
8:11p
2h 11m
nonstop
Depart: Thu Oct 1 2015 Return: Sat Oct 3 2015 Trip spans 3 days
United
United
STL
10:11a
IAD
12:13p
2h 02m
nonstop
IAD
6:00p
STL
8:11p
2h 11m
nonstop
Depart: Tue Nov 3 2015 Return: Tue Nov 10 2015 Trip spans 8 days
United
United
STL
8:53a
IAD
11:01a
2h 08m
nonstop
IAD
5:00p
STL
7:12p
2h 12m
nonstop
Depart: Wed Nov 4 2015 Return: Tue Nov 10 2015 Trip spans 7 days
United
United
STL
6:00a
IAD
8:08a
2h 08m
nonstop
IAD
5:00p
STL
7:12p
2h 12m
nonstop
Depart: Thu Nov 5 2015 Return: Tue Nov 10 2015 Trip spans 6 days
United
United
STL
6:00a
IAD
8:08a
2h 08m
nonstop
IAD
5:00p
STL
7:12p
2h 12m
nonstop
Depart: Sat Nov 7 2015 Return: Tue Nov 10 2015 Trip spans 4 days
United
United
STL
1:30p
IAD
3:28p
1h 58m
nonstop
IAD
5:00p
STL
7:12p
2h 12m
nonstop
Depart: Mon Nov 9 2015 Return: Tue Nov 10 2015 Trip spans 2 days
United
United
STL
8:53a
IAD
11:01a
2h 08m
nonstop
IAD
5:00p
STL
7:12p
2h 12m
nonstop
Depart: Thu Oct 29 2015 Return: Sat Nov 7 2015 Trip spans 10 days
United
United
STL
2:00a
IAD
8:26a
6h 26m
1 stop
IAD
3:25a
STL
5:48a
2h 23m
nonstop
Depart: Thu Aug 27 2015 Return: Sun Aug 30 2015 Trip spans 4 days
United
United
STL
2:32p
IAD
4:35p
2h 03m
nonstop
IAD
6:00p
STL
8:11p
2h 11m
nonstop
Depart: Fri Aug 28 2015 Return: Wed Sep 2 2015 Trip spans 6 days
United
United
STL
2:32p
IAD
4:35p
2h 03m
nonstop
IAD
4:25a
STL
6:37a
2h 12m
nonstop
Depart: Fri Sep 18 2015 Return: Tue Sep 22 2015 Trip spans 5 days
United
United
STL
2:32p
IAD
4:35p
2h 03m
nonstop
IAD
6:00p
STL
8:11p
2h 11m
nonstop
Depart: Thu Sep 17 2015 Return: Wed Sep 23 2015 Trip spans 7 days
US Airways
US Airways
STL
1:59a
IAD
8:08a
6h 09m
1 stop
IAD
1:20a
STL
5:22a
4h 02m
1 stop
Depart: Sat Oct 10 2015 Return: Tue Oct 13 2015 Trip spans 4 days
American Airlines
American Airlines
STL
12:19p
IAD
4:23p
4h 04m
1 stop
IAD
1:45p
STL
6:20p
4h 35m
1 stop
Depart: Thu Sep 10 2015 Return: Mon Sep 14 2015 Trip spans 5 days
Delta
Delta
STL
11:20a
IAD
6:03p
6h 43m
1 stop
IAD
1:30p
STL
7:58p
6h 28m
1 stop
Direct flights STL to IAD on United
Flight # Depart STL Arrive IAD Sun Mon Tue Wed Thu Fri Sat Valid Between
3342 8:35 am 11:40 am Aug 8 - Aug 8
3342 8:35 am 11:40 am Aug 1 - Aug 1
3342 8:35 am 11:40 am Jul 18 - Jul 18
3342 8:35 am 11:40 am Jul 11 - Jul 11
3342 8:35 am 11:40 am Jul 7 - Jul 21
3342 8:35 am 11:40 am Jul 25 - Jul 25
3342 8:35 am 11:40 am Jul 23 - Aug 17
3342 8:50 am 11:55 am Jul 22 - Jul 22
3387 10:57 am 2:00 pm Jul 26 - Aug 2
3387 10:57 am 2:00 pm Aug 3 - Aug 17
3387 10:57 am 2:00 pm Jul 29 - Jul 29
3387 10:57 am 2:00 pm Aug 5 - Aug 5
3387 10:57 am 2:00 pm Jul 2 - Jul 10
3387 10:57 am 2:00 pm Jul 13 - Jul 31
3387 10:57 am 2:00 pm Jul 12 - Jul 12
3387 10:57 am 2:00 pm Aug 9 - Aug 16
3387 10:57 am 2:00 pm Jul 19 - Jul 19
3387 10:57 am 2:00 pm Jul 22 - Jul 22
3387 10:57 am 2:00 pm Jul 15 - Jul 15
3387 10:57 am 2:00 pm Aug 4 - Aug 11
3360 1:18 pm 4:21 pm Jul 11 - Aug 1
3737 1:18 pm 4:21 pm Aug 8 - Aug 8
3360 2:12 pm 5:15 pm Jul 12 - Jul 19
3360 2:12 pm 5:15 pm Jul 2 - Jul 9
3360 2:12 pm 5:15 pm Jul 7 - Aug 4
3360 2:12 pm 5:15 pm Jul 26 - Aug 10
3360 2:12 pm 5:15 pm Jul 10 - Jul 24
3411 6:31 pm 9:35 pm Jul 5 - Aug 17
Airports
Origin

St Louis
$157
Destination

Washington
$157