Find Cheap Flights from Washington Dulles Intl to 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 Lambert-St Louis

(Round-trip)
Depart: Tue Aug 22 2017 Return: Sat Aug 26 2017 Trip spans 5 days
United
United
IAD
6:10p
STL
8:25p
2h 15m
nonstop
STL
6:20a
IAD
8:23a
2h 03m
nonstop
Depart: Mon Sep 11 2017 Return: Thu Sep 21 2017 Trip spans 11 days
American Airlines
American Airlines
IAD
1:30a
STL
5:43a
4h 13m
1 stop
STL
2:00a
IAD
8:05a
6h 05m
1 stop
Depart: Mon Oct 16 2017 Return: Sat Oct 21 2017 Trip spans 6 days
Delta
Delta
IAD
3:00p
STL
8:38p
5h 38m
1 stop
STL
7:10a
IAD
1:22p
6h 12m
1 stop
Depart: Wed Aug 23 2017 Return: Wed Aug 30 2017 Trip spans 8 days
United
United
IAD
6:10p
STL
8:25p
2h 15m
nonstop
STL
4:40a
IAD
6:43a
2h 03m
nonstop
Depart: Sat Sep 16 2017 Return: Mon Sep 18 2017 Trip spans 3 days
American Airlines
American Airlines
IAD
9:45a
STL
2:20p
4h 35m
1 stop
STL
2:00a
IAD
8:05a
6h 05m
1 stop
Depart: Sat Aug 26 2017 Return: Tue Aug 29 2017 Trip spans 4 days
United
United
IAD
1:39p
STL
4:03p
2h 24m
nonstop
STL
9:00a
IAD
11:09a
2h 09m
nonstop
Depart: Tue Sep 19 2017 Return: Thu Sep 28 2017 Trip spans 10 days
American Airlines
American Airlines
IAD
6:50a
STL
12:25p
5h 35m
1 stop
STL
3:20a
IAD
8:05a
4h 45m
1 stop
Depart: Wed Sep 6 2017 Return: Sat Sep 9 2017 Trip spans 4 days
United
United
IAD
6:10p
STL
8:24p
2h 14m
nonstop
STL
2:17p
IAD
4:20p
2h 03m
nonstop
Depart: Wed Sep 20 2017 Return: Thu Sep 28 2017 Trip spans 9 days
American Airlines
American Airlines
IAD
1:30a
STL
5:43a
4h 13m
1 stop
STL
3:20a
IAD
8:05a
4h 45m
1 stop
Depart: Tue Sep 12 2017 Return: Wed Sep 13 2017 Trip spans 2 days
United
United
IAD
8:40a
STL
10:54a
2h 14m
nonstop
STL
4:30a
IAD
6:33a
2h 03m
nonstop
Depart: Thu Sep 21 2017 Return: Sat Sep 23 2017 Trip spans 3 days
American Airlines
American Airlines
IAD
1:30a
STL
5:43a
4h 13m
1 stop
STL
3:20a
IAD
9:46a
6h 26m
1 stop
Depart: Mon Jan 8 2018 Return: Thu Jan 11 2018 Trip spans 4 days
Delta
Delta
IAD
2:10p
STL
7:13p
5h 03m
1 stop
STL
1:40a
IAD
6:12a
4h 32m
1 stop
Depart: Wed Sep 13 2017 Return: Sat Sep 16 2017 Trip spans 4 days
United
United
IAD
6:10p
STL
8:24p
2h 14m
nonstop
STL
2:17p
IAD
4:20p
2h 03m
nonstop
Depart: Mon Sep 18 2017 Return: Mon Sep 25 2017 Trip spans 8 days
United
United
IAD
8:40a
STL
10:54a
2h 14m
nonstop
STL
2:17p
IAD
4:20p
2h 03m
nonstop
Depart: Tue Sep 26 2017 Return: Mon Oct 2 2017 Trip spans 7 days
Delta
Delta
IAD
5:45a
STL
9:45a
4h 00m
1 stop
STL
1:10p
IAD
6:44p
5h 34m
1 stop
Depart: Sat Sep 23 2017 Return: Mon Sep 25 2017 Trip spans 3 days
United
United
IAD
4:35a
STL
6:49a
2h 14m
nonstop
STL
2:17p
IAD
4:20p
2h 03m
nonstop
Depart: Mon Oct 2 2017 Return: Tue Oct 3 2017 Trip spans 2 days
Delta
Delta
IAD
5:30a
STL
10:07a
4h 37m
1 stop
STL
2:30a
IAD
6:30a
4h 00m
1 stop
Depart: Fri Sep 22 2017 Return: Sat Sep 23 2017 Trip spans 2 days
American Airlines
American Airlines
IAD
1:30a
STL
5:43a
4h 13m
1 stop
STL
3:20a
IAD
8:05a
4h 45m
1 stop
Depart: Mon Sep 25 2017 Return: Tue Sep 26 2017 Trip spans 2 days
United
United
IAD
6:10p
STL
8:24p
2h 14m
nonstop
STL
2:17p
IAD
4:20p
2h 03m
nonstop
Depart: Fri Oct 6 2017 Return: Wed Oct 11 2017 Trip spans 6 days
American Airlines
American Airlines
IAD
1:30a
STL
5:43a
4h 13m
1 stop
STL
3:20a
IAD
9:42a
6h 22m
1 stop
Direct flights IAD to STL on United
Flight # Depart IAD Arrive STL Sun Mon Tue Wed Thu Fri Sat Valid Between
4733 8:10 am 9:28 am Aug 1 - Aug 14
4733 8:10 am 9:29 am Aug 15 - Sep 2
4733 8:20 am 9:38 am Jul 22 - Jul 31
4864 12:40 pm 1:58 pm Jul 23 - Aug 14
4864 12:45 pm 2:04 pm Aug 15 - Sep 1
4749 5:35 pm 7:02 pm Jul 24 - Aug 14
4749 5:35 pm 7:02 pm Jul 22 - Aug 13
6140 5:39 pm 7:03 pm Aug 15 - Sep 1
4774 10:10 pm 11:25 pm Jul 23 - Aug 18
4774 10:10 pm 11:25 pm Aug 19 - Sep 2
6223 10:10 pm 11:25 pm Jul 22 - Aug 12
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

Washington
$203
Destination

St. Louis
$203
Airlines Airline reviews

15 travelers who booked a flight from Washington to St. Louis rated their chosen airlines with an average of 6.7.

Overall
6.8
Boarding
6.9
Crew
7.5
Comfort
6.4
Food
6.5
Entertainment
5.7