Find Cheap Flights from Washington to Lambert-St Louis (WAS - 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 to Lambert-St Louis

(Round-trip)
Depart: Thu Aug 10 2017 Return: Tue Aug 22 2017 Trip spans 13 days
American Airlines
American Airlines
DCA
12:00a
STL
4:28a
4h 28m
1 stop
STL
12:00a
DCA
3:48a
3h 48m
1 stop
Depart: Thu Aug 10 2017 Return: Fri Aug 11 2017 Trip spans 2 days
United
United
IAD
12:00a
STL
2:18a
2h 18m
nonstop
STL
12:00a
IAD
2:05a
2h 05m
nonstop
Depart: Fri Aug 4 2017 Return: Thu Aug 10 2017 Trip spans 7 days
Multiple Airlines
Multiple Airlines
DCA
12:00a
STL
2:27a
2h 27m
nonstop
STL
12:00a
DCA
2:08a
2h 08m
nonstop
Depart: Tue Aug 8 2017 Return: Thu Aug 10 2017 Trip spans 3 days
Alaska Airlines
Alaska Airlines
DCA
12:00a
STL
2:18a
2h 18m
nonstop
STL
12:00a
DCA
1:59a
1h 59m
nonstop
Depart: Sat Aug 5 2017 Return: Thu Aug 10 2017 Trip spans 6 days
Delta
Delta
IAD
12:00a
STL
4:16a
4h 16m
1 stop
STL
12:00a
IAD
4:51a
4h 51m
1 stop
Depart: Mon Jul 31 2017 Return: Tue Aug 8 2017 Trip spans 9 days
Frontier
Frontier
DCA
12:00a
STL
10:34a
10h 34m
1 stop
STL
12:00a
DCA
3:59p
15h 59m
1 stop
Depart: Fri Aug 11 2017 Return: Sun Aug 13 2017 Trip spans 3 days
United
United
IAD
12:00a
STL
2:18a
2h 18m
nonstop
STL
12:00a
IAD
2:03a
2h 03m
nonstop
Depart: Wed Aug 9 2017 Return: Tue Aug 22 2017 Trip spans 14 days
American Airlines
American Airlines
DCA
12:00a
STL
2:27a
2h 27m
nonstop
STL
12:00a
DCA
5:16a
5h 16m
1 stop
Depart: Sat Aug 5 2017 Return: Thu Aug 10 2017 Trip spans 6 days
Multiple Airlines
Multiple Airlines
DCA
12:00a
STL
2:12a
2h 12m
nonstop
STL
12:00a
DCA
1:59a
1h 59m
nonstop
Depart: Sun Aug 6 2017 Return: Fri Aug 11 2017 Trip spans 6 days
Delta
Delta
DCA
12:00a
STL
4:13a
4h 13m
1 stop
STL
12:00a
DCA
3:44a
3h 44m
1 stop
Depart: Mon Aug 7 2017 Return: Thu Aug 10 2017 Trip spans 4 days
United
United
IAD
12:00a
STL
2:15a
2h 15m
nonstop
STL
12:00a
IAD
2:03a
2h 03m
nonstop
Depart: Sun Aug 13 2017 Return: Wed Aug 16 2017 Trip spans 4 days
American Airlines
American Airlines
IAD
12:00a
STL
4:24a
4h 24m
1 stop
STL
12:00a
IAD
6:26a
6h 26m
1 stop
Depart: Tue Aug 1 2017 Return: Tue Aug 8 2017 Trip spans 8 days
Frontier
Frontier
DCA
12:00a
STL
10:34a
10h 34m
1 stop
STL
12:00a
DCA
3:59p
15h 59m
1 stop
Depart: Sat Aug 12 2017 Return: Tue Aug 15 2017 Trip spans 4 days
United
United
IAD
12:00a
STL
2:15a
2h 15m
nonstop
STL
12:00a
IAD
2:09a
2h 09m
nonstop
Depart: Sun Aug 6 2017 Return: Fri Aug 11 2017 Trip spans 6 days
Delta
Delta
IAD
12:00a
STL
4:18a
4h 18m
1 stop
STL
12:00a
IAD
4:19a
4h 19m
1 stop
Depart: Mon Aug 7 2017 Return: Thu Aug 10 2017 Trip spans 4 days
American Airlines
American Airlines
DCA
12:00a
STL
4:58a
4h 58m
1 stop
STL
12:00a
DCA
2:07a
2h 07m
nonstop
Depart: Fri Aug 4 2017 Return: Sat Aug 5 2017 Trip spans 2 days
Multiple Airlines
Multiple Airlines
DCA
12:00a
STL
2:27a
2h 27m
nonstop
STL
12:00a
DCA
2:08a
2h 08m
nonstop
Depart: Wed Aug 2 2017 Return: Tue Aug 8 2017 Trip spans 7 days
Frontier
Frontier
DCA
12:00a
STL
10:34a
10h 34m
1 stop
STL
12:00a
DCA
3:59p
15h 59m
1 stop
Depart: Sat Aug 12 2017 Return: Wed Aug 16 2017 Trip spans 5 days
United
United
IAD
12:00a
STL
2:15a
2h 15m
nonstop
STL
12:00a
IAD
7:03a
7h 03m
1 stop
Depart: Sat Aug 5 2017 Return: Tue Aug 8 2017 Trip spans 4 days
Multiple Airlines
Multiple Airlines
DCA
12:00a
STL
3:44a
3h 44m
1 stop
STL
12:00a
DCA
1:59a
1h 59m
nonstop
Direct flights WAS to STL on American Airlines
Flight # Depart DCA Arrive STL Sun Mon Tue Wed Thu Fri Sat Valid Between
4317 8:42 am 10:09 am Jul 27 - Aug 21
4317 8:42 am 10:15 am Aug 22 - Aug 31
5428 8:50 am 10:02 am Jul 29 - Aug 19
4374 10:02 am 11:26 am Jul 30 - Aug 20
4410 10:27 am 11:48 am Jul 27 - Aug 21
4418 10:30 am 11:54 am Aug 22 - Aug 31
5068 11:30 am 12:39 pm Jul 29 - Aug 19
4341 1:52 pm 3:16 pm Jul 22 - Aug 19
5076 1:59 pm 3:11 pm Aug 22 - Aug 31
5076 1:59 pm 3:11 pm Aug 26 - Aug 26
5076 1:59 pm 3:11 pm Aug 27 - Aug 27
4659 2:40 pm 3:58 pm Jul 27 - Aug 21
4319 3:47 pm 5:15 pm Aug 22 - Aug 31
4320 3:47 pm 5:15 pm Aug 26 - Aug 26
4319 3:51 pm 5:18 pm Jul 23 - Aug 21
4320 7:32 pm 9:00 pm Aug 22 - Aug 31
4320 7:38 pm 9:05 pm Jul 27 - Aug 21
* 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
only $279
only $257
Destination

St. Louis
$257
Airlines Airline reviews

22 travelers who booked a flight from Washington to St. Louis rated their chosen airlines with an average of 7.0.

Overall
7.0
Boarding
7.1
Crew
7.5
Comfort
6.9
Food
6.6
Entertainment
5.6