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Flights from Islip to St Louis
There are no direct flights from Islip to St Louis. The fastest way is one stop via Baltimore or Charleston, about 3h 41m door to door (50 connections a week on current schedules).
No direct flights · 6 connection options From 3h 41m
Islip to St Louis at a glance
Fastest journey3h 41mVia Baltimore, on current schedules
Nonstop flightsNoneConnect via Baltimore or Charleston
Best ways to fly from Islip to St Louis
Ranked by how easy the connection is: one airline or alliance first (bags and connection protected), then the quickest self-transfer options.
1Search
ISP Baltimore (BWI) STL
Leg 1: Southwest Airlines · Leg 2: Southwest Airlines
Sun06:30 ISP07:24 BWI0h 51m connection08:15 BWI09:11 STLSouthwest Airlines
2Search
ISP Charleston (CHS) STL
Leg 1: Breeze Airways · Leg 2: Southwest Airlines
Mon09:45 ISP11:32 CHS2h 13m connection13:45 CHS14:27 STLBreeze Airways + Southwest Airlines
3Search
ISP Boston (BOS) STL
Leg 1: Cape Air · Leg 2: Southwest Airlines, Republic Airlines, Envoy Air
Mon10:15 ISP11:14 BOS2h 16m connection13:30 BOS15:06 STLCape Air + Southwest Airlines
4Search
ISP Raleigh (RDU) STL
Leg 1: Breeze Airways · Leg 2: Southwest Airlines
Fri12:15 ISP13:36 RDU6h 24m connection20:00 RDU20:49 STLBreeze Airways + Southwest Airlines
Connections are computed from flights actually flown over the last 8 weeks, with at least 45 minutes to change on one airline and 2 hours on separate tickets. Times are local. The search shows live itineraries and exact times.
Good to know
- Distance
- 1,480 km919 miles
- Journey time
- 3h 41mon current schedules
- Time difference
- -1hSt Louis vs Islip
- Currency in St Louis
- USD
- Airports
- ISP → STL
Flights from Islip to St Louis: questions answered
Are there direct flights from Islip to St Louis?
No. There is no nonstop service, so you will connect, most easily in Baltimore, Charleston and Boston. Some connections are on one airline or alliance, so your bags and connection are protected on a single ticket.
How long is the flight from Islip to St Louis?
With one connection the journey usually takes around 3h 41m, depending on the layover. The straight-line distance is 1,480 km.
Where do you change planes between Islip and St Louis?
The best connecting points are Baltimore (BWI), Charleston (CHS), Boston (BOS) and Raleigh (RDU). Southwest Airlines flies both legs via Baltimore, so you can book it as one ticket.
Which airports serve Islip and St Louis?
Islip: Long Island MacArthur Airport (ISP). St Louis: St. Louis Lambert International Airport (STL).
What is the time difference between Islip and St Louis?
St Louis is 1 hour behind Islip.





