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Find Flight Deals from St Louis 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 St Louis Lambert-St Louis to Washington Dulles Intl

(Round-trip)
Depart: Mon Feb 2 2015 Return: Mon Feb 9 2015 Trip spans 8 days
United
United
STL
3:09a
IAD
5:09a
2h 00m
nonstop
IAD
5:00p
STL
7:26p
2h 26m
nonstop
Depart: Tue Feb 3 2015 Return: Sat Feb 7 2015 Trip spans 5 days
United
United
STL
6:44a
IAD
8:41a
1h 57m
nonstop
IAD
3:11a
STL
5:36a
2h 25m
nonstop
Depart: Sat Feb 7 2015 Return: Mon Feb 9 2015 Trip spans 3 days
United
United
STL
1:17p
IAD
3:10p
1h 53m
nonstop
IAD
5:00p
STL
7:26p
2h 26m
nonstop
Depart: Mon Feb 9 2015 Return: Wed Feb 11 2015 Trip spans 3 days
United
United
STL
1:17p
IAD
3:10p
1h 53m
nonstop
IAD
5:00p
STL
7:26p
2h 26m
nonstop
Depart: Fri Feb 13 2015 Return: Tue Feb 17 2015 Trip spans 5 days
United
United
STL
6:34a
IAD
8:34a
2h 00m
nonstop
IAD
3:21a
STL
5:44a
2h 23m
nonstop
Depart: Thu Feb 19 2015 Return: Sat Feb 21 2015 Trip spans 3 days
United
United
STL
8:54a
IAD
10:50a
1h 56m
nonstop
IAD
3:21a
STL
5:44a
2h 23m
nonstop
Depart: Mon Feb 23 2015 Return: Fri Feb 27 2015 Trip spans 5 days
United
United
STL
6:34a
IAD
8:34a
2h 00m
nonstop
IAD
3:21a
STL
5:44a
2h 23m
nonstop
Depart: Fri Feb 27 2015 Return: Mon Mar 2 2015 Trip spans 4 days
United
United
STL
6:34a
IAD
8:34a
2h 00m
nonstop
IAD
3:21a
STL
5:44a
2h 23m
nonstop
Depart: Fri Mar 6 2015 Return: Mon Mar 9 2015 Trip spans 3 days
United
United
STL
1:38p
IAD
3:31p
1h 53m
nonstop
IAD
8:30a
STL
10:53a
2h 23m
nonstop
Depart: Tue Mar 17 2015 Return: Thu Mar 19 2015 Trip spans 3 days
United
United
STL
4:35a
IAD
6:32a
1h 57m
nonstop
IAD
12:45p
STL
3:08p
2h 23m
nonstop
Depart: Sat Mar 21 2015 Return: Mon Mar 23 2015 Trip spans 3 days
United
United
STL
2:25p
IAD
4:18p
1h 53m
nonstop
IAD
6:06p
STL
8:29p
2h 23m
nonstop
Depart: Thu Mar 26 2015 Return: Tue Mar 31 2015 Trip spans 6 days
United
United
STL
2:38p
IAD
4:31p
1h 53m
nonstop
IAD
4:10a
STL
6:33a
2h 23m
nonstop
Depart: Sat Mar 28 2015 Return: Sat Apr 4 2015 Trip spans 8 days
United
United
STL
7:30a
IAD
9:30a
2h 00m
nonstop
IAD
8:36a
STL
10:59a
2h 23m
nonstop
Depart: Mon Mar 30 2015 Return: Sat Apr 4 2015 Trip spans 6 days
United
United
STL
10:23a
IAD
12:20p
1h 57m
nonstop
IAD
8:36a
STL
10:59a
2h 23m
nonstop
Depart: Tue Apr 7 2015 Return: Fri Apr 10 2015 Trip spans 4 days
United
United
STL
4:51a
IAD
6:50a
1h 59m
nonstop
IAD
6:00p
STL
8:10p
2h 10m
nonstop
Depart: Mon Apr 13 2015 Return: Fri Apr 17 2015 Trip spans 5 days
United
United
STL
2:36p
IAD
4:38p
2h 02m
nonstop
IAD
6:00p
STL
8:10p
2h 10m
nonstop
Depart: Mon Apr 27 2015 Return: Thu Apr 30 2015 Trip spans 4 days
United
United
STL
2:36p
IAD
4:38p
2h 02m
nonstop
IAD
4:16a
STL
6:30a
2h 14m
nonstop
Depart: Wed Mar 11 2015 Return: Fri Mar 13 2015 Trip spans 3 days
US Airways
US Airways
STL
3:50a
IAD
10:44a
6h 54m
1 stop
IAD
1:20a
STL
5:46a
4h 26m
1 stop
Depart: Fri Feb 6 2015 Return: Mon Feb 9 2015 Trip spans 4 days
Delta
Delta
STL
1:40a
IAD
5:54a
4h 14m
1 stop
IAD
7:55a
STL
2:03p
6h 08m
1 stop
Depart: Fri Mar 20 2015 Return: Sun Mar 29 2015 Trip spans 10 days
Multiple Airlines
Multiple Airlines
STL
3:50a
IAD
10:44a
6h 54m
1 stop
IAD
4:10a
STL
6:33a
2h 23m
nonstop
Change your search
Direct flights STL to IAD on United
Flight # Depart STL Arrive IAD Sun Mon Tue Wed Thu Fri Sat Valid Between
3342 8:00 am 11:00 am Feb 13 - Feb 13
3361 8:00 am 11:00 am Feb 17 - Feb 24
3361 8:00 am 11:00 am Feb 16 - Mar 2
3361 8:00 am 11:00 am Mar 3 - Mar 4
3361 8:00 am 11:00 am Feb 22 - Mar 1
3411 8:00 am 11:00 am Feb 14 - Feb 28
3411 8:00 am 11:00 am Feb 15 - Feb 15
3411 8:00 am 11:00 am Jan 25 - Feb 8
5282 8:00 am 11:00 am Feb 12 - Feb 12
3361 8:09 am 11:09 am Feb 2 - Feb 6
3419 8:09 am 11:09 am Feb 9 - Feb 9
5287 8:09 am 11:09 am Feb 4 - Feb 11
5287 8:09 am 11:09 am Feb 10 - Feb 10
5287 8:09 am 11:09 am Jan 20 - Feb 3
5287 8:09 am 11:09 am Feb 5 - Feb 5
3370 10:06 am 1:03 pm Feb 1 - Feb 1
5287 10:06 am 1:03 pm Feb 8 - Feb 8
3420 11:34 am 2:34 pm Feb 17 - Feb 24
3420 11:34 am 2:34 pm Feb 12 - Mar 4
3420 11:34 am 2:34 pm Feb 16 - Mar 2
3420 11:34 am 2:34 pm Mar 3 - Mar 3
3420 11:44 am 2:41 pm Feb 5 - Feb 6
3420 11:44 am 2:41 pm Feb 11 - Feb 11
3420 11:44 am 2:41 pm Feb 10 - Feb 10
3420 11:44 am 2:41 pm Feb 2 - Feb 9
3420 11:44 am 2:41 pm Feb 4 - Feb 4
3420 11:44 am 2:41 pm Jan 28 - Feb 3
3370 1:54 pm 4:50 pm Feb 13 - Mar 4
3370 2:04 pm 5:00 pm Feb 12 - Feb 12
3370 2:15 pm 5:12 pm Jan 31 - Feb 7
3370 2:22 pm 5:19 pm Jan 22 - Feb 2
3370 2:22 pm 5:19 pm Feb 3 - Feb 11
3391 6:06 pm 9:06 pm Feb 23 - Feb 23
3391 6:06 pm 9:06 pm Feb 25 - Feb 27
3391 6:06 pm 9:06 pm Feb 12 - Feb 20
3411 6:06 pm 9:06 pm Mar 3 - Mar 3
3411 6:06 pm 9:06 pm Feb 24 - Feb 24
3411 6:06 pm 9:06 pm Feb 16 - Feb 16
3432 6:06 pm 9:06 pm Mar 2 - Mar 2
3432 6:06 pm 9:06 pm Mar 4 - Mar 4
3420 6:10 pm 9:10 pm Mar 1 - Mar 1
3420 6:10 pm 9:10 pm Feb 15 - Feb 22
5032 6:10 pm 9:10 pm Feb 28 - Feb 28
5032 6:10 pm 9:10 pm Feb 14 - Feb 21
3370 6:17 pm 9:10 pm Feb 8 - Feb 8
3411 6:17 pm 9:10 pm Jan 28 - Feb 11
3411 6:17 pm 9:10 pm Feb 2 - Feb 9
3411 6:17 pm 9:10 pm Jan 31 - Feb 7
5287 6:17 pm 9:10 pm Feb 1 - Feb 1
Airports
Origin

St Louis
$227
Destination

Washington
$227