Find Deals on 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.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

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

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

(Round-trip)
Depart: Tue Oct 11 2016 Return: Sat Oct 15 2016 Trip spans 5 days
United
United
IAD
8:35a
STL
10:55a
2h 20m
nonstop
STL
9:30a
IAD
11:35a
2h 05m
nonstop
Depart: Mon Jan 2 2017 Return: Sun Jan 8 2017 Trip spans 7 days
Major Airline
Major Airline
IAD
11:50p
STL
3:54p
16h 04m
1 stop
STL
6:52a
IAD
5:05a
22h 13m
1 stop
Depart: Wed Oct 26 2016 Return: Mon Oct 31 2016 Trip spans 6 days
Delta
Delta
IAD
2:05a
STL
6:35a
4h 30m
1 stop
STL
12:46p
IAD
5:12p
4h 26m
1 stop
Depart: Wed Oct 12 2016 Return: Sat Oct 15 2016 Trip spans 4 days
United
United
IAD
6:05p
STL
8:20p
2h 15m
nonstop
STL
2:25p
IAD
4:30p
2h 05m
nonstop
Depart: Thu Oct 13 2016 Return: Sat Oct 15 2016 Trip spans 3 days
United
United
IAD
4:30a
STL
6:50a
2h 20m
nonstop
STL
9:30a
IAD
11:35a
2h 05m
nonstop
Depart: Mon Oct 17 2016 Return: Tue Oct 18 2016 Trip spans 2 days
Delta
Delta
IAD
3:27p
STL
8:19p
4h 52m
1 stop
STL
6:19a
IAD
12:06p
5h 47m
1 stop
Depart: Fri Nov 18 2016 Return: Sat Nov 19 2016 Trip spans 2 days
Major Airline
Major Airline
IAD
9:00a
STL
2:59p
29h 59m
1 stop
STL
8:30p
IAD
6:52a
10h 22m
1 stop
Depart: Sat Oct 15 2016 Return: Mon Oct 17 2016 Trip spans 3 days
United
United
IAD
4:30a
STL
6:50a
2h 20m
nonstop
STL
2:30p
IAD
4:35p
2h 05m
nonstop
Depart: Tue Dec 20 2016 Return: Sun Dec 25 2016 Trip spans 6 days
Delta
Delta
IAD
12:20p
STL
4:39p
4h 19m
1 stop
STL
1:35a
IAD
7:41a
6h 06m
1 stop
Depart: Tue Oct 18 2016 Return: Wed Oct 19 2016 Trip spans 2 days
United
United
IAD
8:35a
STL
10:55a
2h 20m
nonstop
STL
9:30a
IAD
11:35a
2h 05m
nonstop
Depart: Sat Oct 22 2016 Return: Mon Oct 24 2016 Trip spans 3 days
United
United
IAD
6:05p
STL
8:20p
2h 15m
nonstop
STL
2:30p
IAD
4:35p
2h 05m
nonstop
Depart: Wed Nov 23 2016 Return: Mon Nov 28 2016 Trip spans 6 days
Major Airline
Major Airline
IAD
9:00a
STL
8:49a
23h 49m
1 stop
STL
8:50a
IAD
6:52a
22h 02m
1 stop
Depart: Mon Oct 24 2016 Return: Wed Oct 26 2016 Trip spans 3 days
United
United
IAD
6:05p
STL
8:20p
2h 15m
nonstop
STL
2:30p
IAD
4:35p
2h 05m
nonstop
Depart: Wed Dec 21 2016 Return: Sun Dec 25 2016 Trip spans 5 days
Delta
Delta
IAD
12:45p
STL
7:57p
7h 12m
1 stop
STL
1:35a
IAD
7:41a
6h 06m
1 stop
Depart: Tue Oct 25 2016 Return: Sat Oct 29 2016 Trip spans 5 days
United
United
IAD
8:35a
STL
10:55a
2h 20m
nonstop
STL
4:25a
IAD
6:31a
2h 06m
nonstop
Depart: Thu Oct 27 2016 Return: Sat Oct 29 2016 Trip spans 3 days
United
United
IAD
4:30a
STL
6:50a
2h 20m
nonstop
STL
9:30a
IAD
11:35a
2h 05m
nonstop
Depart: Fri Mar 3 2017 Return: Fri Mar 10 2017 Trip spans 8 days
Delta
Delta
IAD
7:59a
STL
2:55p
6h 56m
1 stop
STL
12:00p
IAD
5:43p
5h 43m
1 stop
Depart: Sat Oct 29 2016 Return: Mon Oct 31 2016 Trip spans 3 days
United
United
IAD
4:30a
STL
6:50a
2h 20m
nonstop
STL
2:25p
IAD
4:20p
1h 55m
nonstop
Depart: Fri Dec 16 2016 Return: Wed Dec 21 2016 Trip spans 6 days
Delta
Delta
IAD
9:45a
STL
2:57p
5h 12m
1 stop
STL
10:10a
IAD
4:42p
6h 32m
1 stop
Depart: Mon Oct 31 2016 Return: Tue Nov 1 2016 Trip spans 2 days
United
United
IAD
4:25a
STL
6:51a
2h 26m
nonstop
STL
4:25a
IAD
6:24a
1h 59m
nonstop
Direct flights IAD to STL on United
Flight # Depart IAD Arrive STL Sun Mon Tue Wed Thu Fri Sat Valid Between
4614 8:15 am 9:35 am Oct 6 - Oct 6
4614 8:25 am 9:51 am Nov 1 - Nov 4
4614 8:25 am 9:51 am Oct 30 - Oct 30
6125 8:25 am 9:51 am Oct 31 - Oct 31
4614 8:30 am 9:50 am Oct 7 - Oct 7
4614 8:30 am 9:50 am Oct 29 - Oct 29
4686 8:30 am 9:50 am Oct 8 - Oct 28
6125 8:30 am 9:46 am Oct 9 - Oct 23
4614 8:35 am 9:55 am Sep 26 - Oct 5
4766 9:00 am 10:20 am Oct 6 - Oct 6
6012 12:30 pm 1:58 pm Oct 30 - Nov 4
6012 12:30 pm 1:58 pm Nov 5 - Nov 5
6012 12:35 pm 1:55 pm Sep 24 - Oct 29
4697 5:15 pm 6:35 pm Sep 24 - Oct 5
4697 5:25 pm 6:53 pm Oct 30 - Nov 5
4697 5:25 pm 6:45 pm Oct 6 - Oct 29
4774 10:00 pm 11:15 pm Oct 29 - Oct 29
4774 10:00 pm 11:24 pm Oct 31 - Oct 31
4774 10:00 pm 11:20 pm Nov 2 - Nov 2
4774 10:00 pm 11:23 pm Nov 5 - Nov 5
4774 10:00 pm 11:24 pm Oct 30 - Nov 4
4680 10:05 pm 11:20 pm Sep 24 - Oct 5
4774 10:05 pm 11:20 pm Oct 6 - Oct 28
6074 10:05 pm 11:20 pm Oct 8 - Oct 22
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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

Here's why:

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

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Washington
$203
Destination

St. Louis
$203
Airlines Airline reviews

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

Overall
6.7
Boarding
6.9
Crew
7.6
Comfort
6.4
Food
6.5
Entertainment
5.5