ISP (Islip) to RSW (Fort Myers) flights arrive on time 74% of the time. The most reliable airline on this route is Frontier Airlines at 74%. The average delay is 94 minutes. Delays on this route are most often caused by air traffic and busy airspace.
Source: Bureau of Transportation Statistics. Updated May 2026.ISP → RSW
ISP (Islip) to RSW (Fort Myers)
ISP → RSW on-time performance by month
24
25
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
This route is delayed fairly often. About 74% of flights arrive on schedule.
Delays on this route are most often caused by air traffic and busy airspace.
Accurate?
Accurate?
Good to know
Departing from ISP
77% on timeTSA is currently ~7 min. Best time: 4 AM (about 5 min).
ISP cancels 2.1% of flights — higher than average. Have a backup plan.
Arriving at RSW
79% on timeWhen flights into RSW are late, the average delay is 73 minutes. Build buffer if you have ground plans.
If connecting at RSW: TSA is ~17 min right now. Allow at least 60 minutes for a domestic connection.
RSW has a 2.5% cancellation rate — keep the airline app handy for rebooking.
Flight cancelled or delayed?
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Data last updated May 2026. Source: Bureau of Transportation Statistics.