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

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Washington Dulles Intl to St. Louis Lambert-St Louis

(Round-trip)
Depart: Sat Feb 27 2016 Return: Tue Mar 1 2016 Trip spans 4 days
United
United
IAD
4:00a
STL
6:22a
2h 22m
nonstop
STL
12:57p
IAD
2:55p
1h 58m
nonstop
Depart: Tue Mar 1 2016 Return: Wed Mar 2 2016 Trip spans 2 days
United
United
IAD
12:30p
STL
2:57p
2h 27m
nonstop
STL
12:57p
IAD
2:55p
1h 58m
nonstop
Depart: Wed Mar 2 2016 Return: Tue Mar 8 2016 Trip spans 7 days
United
United
IAD
12:30p
STL
2:57p
2h 27m
nonstop
STL
1:13p
IAD
3:15p
2h 02m
nonstop
Depart: Sat Mar 5 2016 Return: Tue Mar 8 2016 Trip spans 4 days
United
United
IAD
4:57p
STL
7:11p
2h 14m
nonstop
STL
1:13p
IAD
3:15p
2h 02m
nonstop
Depart: Tue Mar 8 2016 Return: Wed Mar 9 2016 Trip spans 2 days
United
United
IAD
5:15p
STL
7:29p
2h 14m
nonstop
STL
1:13p
IAD
3:15p
2h 02m
nonstop
Depart: Wed Mar 9 2016 Return: Tue Mar 15 2016 Trip spans 6 days
United
United
IAD
5:15p
STL
7:29p
2h 14m
nonstop
STL
8:45a
IAD
10:44a
1h 59m
nonstop
Depart: Tue Mar 22 2016 Return: Sat Mar 26 2016 Trip spans 5 days
United
United
IAD
6:15p
STL
8:29p
2h 14m
nonstop
STL
2:15p
IAD
4:17p
2h 02m
nonstop
Depart: Tue Mar 29 2016 Return: Tue Apr 5 2016 Trip spans 8 days
United
United
IAD
6:15p
STL
8:29p
2h 14m
nonstop
STL
9:27a
IAD
11:30a
2h 03m
nonstop
Depart: Wed Mar 30 2016 Return: Tue Apr 5 2016 Trip spans 7 days
United
United
IAD
4:50a
STL
7:06a
2h 16m
nonstop
STL
9:27a
IAD
11:30a
2h 03m
nonstop
Depart: Wed Apr 6 2016 Return: Wed Apr 13 2016 Trip spans 8 days
United
United
IAD
6:13p
STL
8:29p
2h 16m
nonstop
STL
9:27a
IAD
11:30a
2h 03m
nonstop
Depart: Sat Apr 9 2016 Return: Wed Apr 13 2016 Trip spans 5 days
United
United
IAD
5:34a
STL
7:54a
2h 20m
nonstop
STL
2:09p
IAD
4:10p
2h 01m
nonstop
Depart: Tue Apr 12 2016 Return: Wed Apr 13 2016 Trip spans 2 days
United
United
IAD
6:13p
STL
8:29p
2h 16m
nonstop
STL
9:27a
IAD
11:30a
2h 03m
nonstop
Depart: Wed Apr 13 2016 Return: Tue Apr 19 2016 Trip spans 7 days
United
United
IAD
6:13p
STL
8:29p
2h 16m
nonstop
STL
4:40a
IAD
6:42a
2h 02m
nonstop
Depart: Tue Apr 26 2016 Return: Wed Apr 27 2016 Trip spans 2 days
United
United
IAD
5:34a
STL
7:54a
2h 20m
nonstop
STL
4:40a
IAD
6:42a
2h 02m
nonstop
Depart: Wed May 4 2016 Return: Sat May 7 2016 Trip spans 4 days
United
United
IAD
6:13p
STL
8:29p
2h 16m
nonstop
STL
1:50p
IAD
3:48p
1h 58m
nonstop
Depart: Sat May 7 2016 Return: Tue May 10 2016 Trip spans 4 days
United
United
IAD
6:00p
STL
8:12p
2h 12m
nonstop
STL
1:50p
IAD
3:48p
1h 58m
nonstop
Depart: Tue May 10 2016 Return: Tue May 17 2016 Trip spans 8 days
United
United
IAD
6:00p
STL
8:12p
2h 12m
nonstop
STL
1:50p
IAD
3:48p
1h 58m
nonstop
Depart: Wed Jun 1 2016 Return: Sat Jun 4 2016 Trip spans 4 days
United
United
IAD
6:00p
STL
8:12p
2h 12m
nonstop
STL
1:50p
IAD
3:48p
1h 58m
nonstop
Depart: Thu Feb 25 2016 Return: Tue Mar 8 2016 Trip spans 13 days
American Airlines
American Airlines
IAD
12:15a
STL
4:40a
4h 25m
1 stop
STL
1:00a
IAD
7:10a
6h 10m
1 stop
Depart: Wed Mar 16 2016 Return: Sat Mar 19 2016 Trip spans 4 days
Delta
Delta
IAD
5:24a
STL
10:06a
4h 42m
1 stop
STL
2:40a
IAD
7:29a
4h 49m
1 stop
Direct flights IAD to STL on United
Flight # Depart IAD Arrive STL Sun Mon Tue Wed Thu Fri Sat Valid Between
4614 8:09 am 9:25 am Mar 19 - Apr 2
4614 8:09 am 9:25 am Mar 5 - Mar 12
4614 8:50 am 10:06 am Mar 4 - Mar 11
4614 8:50 am 10:06 am Mar 3 - Mar 10
4614 8:50 am 10:06 am Mar 14 - Mar 24
4614 8:50 am 10:06 am Mar 18 - Mar 18
6123 9:00 am 10:22 am Feb 21 - Feb 28
6123 9:00 am 10:22 am Feb 13 - Feb 27
4614 9:31 am 10:58 am Feb 11 - Feb 29
4614 9:31 am 10:58 am Mar 2 - Mar 2
4526 12:20 pm 1:36 pm Mar 13 - Mar 20
4526 12:20 pm 1:36 pm Mar 6 - Mar 6
4535 5:03 pm 6:21 pm Mar 19 - Mar 26
4535 5:03 pm 6:21 pm Mar 15 - Mar 15
4535 5:03 pm 6:21 pm Mar 8 - Mar 8
4535 5:03 pm 6:21 pm Mar 5 - Mar 12
4535 5:05 pm 6:23 pm Mar 18 - Mar 25
4535 5:05 pm 6:23 pm Mar 4 - Mar 11
4535 5:10 pm 6:28 pm Mar 9 - Mar 9
4535 5:10 pm 6:28 pm Mar 3 - Mar 10
4535 5:10 pm 6:28 pm Mar 16 - Mar 16
4535 5:10 pm 6:28 pm Mar 14 - Mar 24
4535 5:20 pm 6:37 pm Mar 20 - Mar 20
4535 5:20 pm 6:37 pm Mar 6 - Mar 6
4535 5:20 pm 6:37 pm Mar 13 - Mar 13
4535 5:30 pm 6:57 pm Feb 11 - Feb 29
4535 5:30 pm 6:57 pm Feb 23 - Mar 1
4535 5:30 pm 6:57 pm Feb 13 - Feb 27
4535 5:30 pm 6:57 pm Mar 2 - Mar 2
4535 5:30 pm 6:57 pm Feb 14 - Feb 28
4546 9:57 pm 11:11 pm Mar 5 - Mar 12
4546 9:57 pm 11:11 pm Mar 19 - Mar 26
4546 10:04 pm 11:18 pm Mar 13 - Mar 20
4546 10:04 pm 11:18 pm Mar 6 - Mar 6
4546 10:07 pm 11:34 pm Feb 23 - Mar 1
4546 10:07 pm 11:34 pm Feb 13 - Feb 29
4546 10:07 pm 11:34 pm Feb 25 - Mar 2
4546 10:07 pm 11:34 pm Feb 11 - Feb 19
4546 10:15 pm 11:29 pm Mar 7 - Mar 7
4546 10:15 pm 11:29 pm Mar 11 - Mar 11
4546 10:15 pm 11:29 pm Mar 4 - Mar 4
4546 10:15 pm 11:29 pm Mar 8 - Mar 8
4546 10:15 pm 11:29 pm Mar 14 - Mar 21
4546 10:15 pm 11:29 pm Mar 15 - Mar 15
4546 10:15 pm 11:29 pm Mar 3 - Mar 10
4546 10:15 pm 11:29 pm Mar 18 - Mar 25
4546 10:15 pm 11:29 pm Mar 16 - Mar 24
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We make every attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

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At KAYAK we don’t set prices, so it’s not possible for us to guarantee what other companies are selling.

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Why aren’t prices accurate 100% of the time?
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Airports
Origin

Washington
$203
Destination

St. Louis
$203