Round-trip from | $238 (Frontier) |
---|---|
Popular in | December |
Cheapest in | January |
Average price | $348 |
Fly from
Fly to
Route
Depart
Return
Price
IslipSt. Louis
ISP - STL
ISPSTL
Islip Long Island
Thu 8/21
6:05 am-1:07 pm
1 stop8h 02m
Lambert-St Louis
Sun 8/24
2:02 pm-11:59 pm
1 stop8h 57m
IslipSt. Louis
ISP - STL
ISPSTL
Islip Long Island
Fri 8/15
3:05 pm-7:35 pm
1 stop5h 30m
Lambert-St Louis
Sun 8/17
8:10 am-5:00 pm
1 stop7h 50m
Currently, August is the cheapest month in which you can book a flight from Islip, New York to St. Louis (average of $311). Flying from Islip, New York to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
When flying from Islip, New York to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Comfort
Entertainment
Overall
Food
Boarding
Crew
Reviews
John,May 2025
PVD - BNA
Comfort
Entertainment
Overall
Food
Boarding
Crew
Reviews
John,May 2025
PVD - BNA
Comfort
Entertainment
Overall
Food
Boarding
Crew
Reviews
John,May 2025
PVD - BNA
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$304 | Average$386 | FlexibilityNo cancel fee | On-time63% |