Islip (ISP) to St. Louis (STL) Flight Schedule

Flight Islip(ISP) to St. Louis(STL)
CHANGE DIRECTION

Long Island MacArthur Airport St. Louis Lambert International Airport
ISP : Islip , United States STL : St. Louis , United States
UTC-4(DST) UTC-5(DST)

Islip to St. Louis Flight Schedule(September 2025)

Flight from Islip(ISP) to St. Louis(STL) is operated by 1 airline : Southwest Airlines (WN). You can check flight schedules, flight duration, and aircraft types.

Change Direction(STL to ISP)

Islip (ISP) to St. Louis (STL) Flight Schedule

LastUpdate : 2025/09/01 20:08

Flight Schedule on September 2025 , Direct flight departure from Islip with all airlines , flight number, flight duration, aircraft type.

September 2025
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Flight Number / Airline Departure Time Arrival Time Flight Duration Operating Days Aircraft Type Airfare / Tickets
WN1857
Southwest Airlines
12:30 15:45 4h15m
1 Transfer
-TW---- (Sep 2–3, Sep 9–10, Sep 16–17, Sep 23–24, Sep 30)
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Change Direction(STL to ISP)
Flight schedules as of September 01, 2025, 08:08 PM(OAG data). Schedules may change without notice, so please check with airlines before booking. Refer to FlyTeam's terms of use before proceeding. Some airlines and flight numbers may not be displayed.

FAQ : Islip to St. Louis

How many airlines fly from Islip to St. Louis ?
As of September 2025, 1 airline operate direct flights from Islip (ISP) to St. Louis (STL) : Southwest Airlines.
What is the time difference between Islip to St. Louis?
The time difference between Long Island MacArthur Airport(Islip) and St. Louis Lambert International Airport(St. Louis) is -1 hour. St. Louis is 1 hour behind Islip.Islip is currently observing daylight saving time (DST) from March 9, 2025 to November 2, 2025.St. Louis is currently observing daylight saving time (DST) from March 9, 2025 to November 2, 2025.