ISP (Islip) to MCO (Orlando) flights arrive on time 77% of the time. The most reliable airline on this route is Southwest Airlines at 80%. The average delay is 83 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated March 2026.ISP → MCO
ISP (Islip) to MCO (Orlando)
ISP → MCO on-time performance by month
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JanFebMarAprMayJunJulAugSepOctNovDec
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This route is on time most of the time. About 77% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
Southwest Airlines edges out Frontier Airlines on this route — 80% vs 73% on time.
Airline Comparison
Southwest Airlines leads at 80% on time; Frontier Airlines trails at 73%.
Accurate?
Good to know
Departing from ISP
77% on timeTSA is currently ~5 min. Best time: 4 AM (about 5 min).
ISP cancels 2.1% of flights — higher than average. Have a backup plan.
Arriving at MCO
75% on timeWhen flights into MCO are late, the average delay is 71 minutes. Build buffer if you have ground plans.
If connecting at MCO: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.
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Data last updated March 2026. Source: Bureau of Transportation Statistics.