Find Cheap Flights from Philadelphia to Lambert-St Louis (PHL - 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 Philadelphia to Lambert-St Louis

(Round-trip)
Depart: Wed Nov 8 2017 Return: Sat Nov 11 2017 Trip spans 4 days
Frontier
Frontier
PHL
12:00a
STL
11:25a
11h 25m
1 stop
STL
12:00a
PHL
11:52a
11h 52m
1 stop
Depart: Tue Sep 12 2017 Return: Thu Sep 14 2017 Trip spans 3 days
American Airlines
American Airlines
PHL
12:00a
STL
2:25a
2h 25m
nonstop
STL
12:00a
PHL
2:17a
2h 17m
nonstop
Depart: Fri Sep 15 2017 Return: Sun Sep 17 2017 Trip spans 3 days
Delta
Delta
PHL
12:00a
STL
5:10a
5h 10m
1 stop
STL
12:00a
PHL
5:50a
5h 50m
1 stop
Depart: Wed Sep 6 2017 Return: Tue Sep 12 2017 Trip spans 7 days
Multiple Airlines
Multiple Airlines
PHL
12:00a
STL
2:21a
2h 21m
nonstop
STL
12:00a
PHL
10:01a
10h 01m
1 stop
Depart: Wed Oct 25 2017 Return: Mon Oct 30 2017 Trip spans 6 days
Frontier
Frontier
PHL
12:00a
STL
11:21a
11h 21m
1 stop
STL
12:00a
PHL
12:49p
12h 49m
1 stop
Depart: Thu Sep 14 2017 Return: Tue Sep 19 2017 Trip spans 6 days
American Airlines
American Airlines
PHL
12:00a
STL
2:25a
2h 25m
nonstop
STL
12:00a
PHL
2:18a
2h 18m
nonstop
Depart: Fri Nov 3 2017 Return: Sat Nov 11 2017 Trip spans 9 days
Frontier
Frontier
PHL
12:00a
STL
11:25a
11h 25m
1 stop
STL
12:00a
PHL
11:52a
11h 52m
1 stop
Depart: Mon Sep 25 2017 Return: Thu Sep 28 2017 Trip spans 4 days
American Airlines
American Airlines
PHL
12:00a
STL
2:25a
2h 25m
nonstop
STL
12:00a
PHL
2:17a
2h 17m
nonstop
Depart: Sat Nov 4 2017 Return: Wed Nov 8 2017 Trip spans 5 days
Frontier
Frontier
PHL
12:00a
STL
11:25a
11h 25m
1 stop
STL
12:00a
PHL
11:52a
11h 52m
1 stop
Depart: Sat Sep 30 2017 Return: Mon Oct 2 2017 Trip spans 3 days
American Airlines
American Airlines
PHL
12:00a
STL
2:36a
2h 36m
nonstop
STL
12:00a
PHL
2:10a
2h 10m
nonstop
Depart: Sat Nov 4 2017 Return: Sat Nov 11 2017 Trip spans 8 days
Delta
Delta
PHL
12:00a
STL
7:04a
7h 04m
1 stop
STL
12:00a
PHL
7:56a
7h 56m
1 stop
Depart: Thu Oct 12 2017 Return: Mon Oct 16 2017 Trip spans 5 days
American Airlines
American Airlines
PHL
12:00a
STL
2:31a
2h 31m
nonstop
STL
12:00a
PHL
2:10a
2h 10m
nonstop
Depart: Fri Nov 3 2017 Return: Sun Nov 5 2017 Trip spans 3 days
Multiple Airlines
Multiple Airlines
PHL
12:00a
STL
2:21a
2h 21m
nonstop
STL
12:00a
PHL
3:09a
4h 09m
1 stop
Depart: Sat Nov 4 2017 Return: Mon Nov 6 2017 Trip spans 3 days
American Airlines
American Airlines
PHL
12:00a
STL
2:31a
2h 31m
nonstop
STL
12:00a
PHL
2:12a
2h 12m
nonstop
Depart: Sat Sep 2 2017 Return: Sun Sep 10 2017 Trip spans 9 days
Delta
Delta
PHL
12:00a
STL
6:59a
6h 59m
1 stop
STL
12:00a
PHL
4:26a
4h 26m
1 stop
Depart: Tue Nov 21 2017 Return: Sun Nov 26 2017 Trip spans 6 days
Multiple Airlines
Multiple Airlines
PHL
12:00a
STL
2:48a
2h 48m
nonstop
STL
12:00a
PHL
4:19a
4h 19m
1 stop
Depart: Mon Nov 6 2017 Return: Sat Nov 11 2017 Trip spans 6 days
American Airlines
American Airlines
PHL
12:00a
STL
2:36a
2h 36m
nonstop
STL
12:00a
PHL
2:14a
2h 14m
nonstop
Depart: Sat Nov 4 2017 Return: Fri Nov 10 2017 Trip spans 7 days
Delta
Delta
PHL
12:00a
STL
4:15a
4h 15m
1 stop
STL
12:00a
PHL
7:25a
7h 25m
1 stop
Depart: Tue Nov 7 2017 Return: Sat Nov 11 2017 Trip spans 5 days
American Airlines
American Airlines
PHL
12:00a
STL
2:42a
2h 42m
nonstop
STL
12:00a
PHL
2:13a
2h 13m
nonstop
Depart: Mon Nov 6 2017 Return: Fri Nov 10 2017 Trip spans 5 days
Delta
Delta
PHL
12:00a
STL
6:09a
6h 09m
1 stop
STL
12:00a
PHL
5:56a
5h 56m
1 stop
Direct flights PHL to STL on American Airlines
Flight # Depart PHL Arrive STL Sun Mon Tue Wed Thu Fri Sat Valid Between
4854 9:10 am 10:46 am Sep 10 - Oct 4
4854 9:10 am 10:46 am Aug 22 - Aug 31
4854 9:10 am 10:46 am Sep 1 - Sep 9
4883 10:40 am 12:09 pm Sep 9 - Oct 1
5003 10:40 am 12:09 pm Sep 6 - Oct 4
5004 10:40 am 12:09 pm Sep 12 - Oct 3
4282 10:45 am 12:11 pm Sep 1 - Sep 5
4282 10:45 am 12:11 pm Aug 22 - Aug 31
1888 1:25 pm 2:50 pm Sep 1 - Nov 3
1888 1:25 pm 2:50 pm Aug 22 - Aug 31
4575 1:25 pm 2:52 pm Aug 27 - Aug 27
4575 1:25 pm 2:52 pm Sep 3 - Sep 3
4575 1:25 pm 2:52 pm Sep 10 - Oct 1
4157 5:55 pm 7:31 pm Aug 22 - Aug 31
4157 5:55 pm 7:31 pm Sep 1 - Sep 5
4902 5:55 pm 7:36 pm Sep 6 - Nov 4
5171 8:25 pm 9:46 pm Aug 22 - Aug 31
5171 8:25 pm 9:46 pm Sep 1 - Oct 31
* 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

Philadelphia
$278
Destination

St. Louis
$278
Airlines Airline reviews

9 travelers who booked a flight from Philadelphia to St. Louis rated their chosen airlines with an average of 8.2.

Overall
8.0
Boarding
8.2
Crew
9.1
Comfort
8.7
Food
7.8
Entertainment
6.2