Find Cheap Flights from Islip Long Island to Lambert-St Louis (ISP - 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 Islip Long Island to Lambert-St Louis

(Round-trip)
Depart: Thu Nov 23 2017 Return: Mon Nov 27 2017 Trip spans 5 days
Frontier
Frontier
ISP
12:00a
STL
6:20p
18h 20m
1 stop
STL
12:00a
ISP
12:30a
24h 30m
1 stop
Depart: Sat Jan 13 2018 Return: Tue Jan 16 2018 Trip spans 4 days
American Airlines
American Airlines
ISP
12:00a
STL
5:03a
5h 03m
1 stop
STL
12:00a
ISP
4:15a
4h 15m
1 stop
Depart: Tue Dec 26 2017 Return: Sat Jan 6 2018 Trip spans 12 days
Frontier
Frontier
ISP
12:00a
STL
6:18p
18h 18m
1 stop
STL
12:00a
ISP
6:17a
6h 17m
1 stop
Depart: Thu Feb 8 2018 Return: Sat Feb 10 2018 Trip spans 3 days
American Airlines
American Airlines
ISP
12:00a
STL
5:03a
5h 03m
1 stop
STL
12:00a
ISP
5:01a
5h 01m
1 stop
Depart: Wed Mar 21 2018 Return: Sun Mar 25 2018 Trip spans 5 days
Frontier
Frontier
ISP
12:00a
STL
8:27p
20h 27m
2 stops
STL
12:00a
ISP
7:12p
19h 12m
2 stops
Depart: Fri Dec 1 2017 Return: Sun Dec 3 2017 Trip spans 3 days
Frontier
Frontier
ISP
12:00a
STL
2:00a
26h 00m
2 stops
STL
12:00a
ISP
8:55p
20h 55m
2 stops
Depart: Mon Dec 4 2017 Return: Thu Dec 7 2017 Trip spans 4 days
Frontier
Frontier
ISP
12:00a
STL
8:44p
20h 44m
2 stops
STL
12:00a
ISP
8:55p
20h 55m
2 stops
Depart: Sat Apr 7 2018 Return: Thu Apr 12 2018 Trip spans 6 days
Frontier
Frontier
ISP
12:00a
STL
6:13p
18h 13m
2 stops
STL
12:00a
ISP
12:16p
12h 16m
2 stops
Depart: Sat Dec 23 2017 Return: Thu Dec 28 2017 Trip spans 6 days
Frontier
Frontier
ISP
12:00a
STL
8:42p
20h 42m
2 stops
STL
12:00a
ISP
6:43p
18h 43m
2 stops
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

Islip
$190
Destination

St. Louis
$190