ORIGIN AIRPORT REPORT
ISP
Islip, NY (ISP) departure reliability
Historical arrival outcomes for 4,986 scheduled reportable flights that departed ISP in July 2025–June 2026.
HISTORICAL ROUTE SIGNALGenerally reliable
73.4%arrived on time
15.8%30+ min late
2.0%cancelled
4,986scheduled flights
MOST-FLOWN DIRECTIONS
ALL ROUTES →Routes from ISP
ISP→MCOIslip, NY (ISP) to Orlando, FL (MCO)1,428 flights analyzedGenerally reliable71.0%on timeISP→PBIIslip, NY (ISP) to West Palm Beach/Palm Beach, FL (PBI)1,223 flights analyzedVariable69.9%on timeISP→BWIIslip, NY (ISP) to Baltimore, MD (BWI)1,217 flights analyzedGenerally reliable83.4%on timeISP→TPAIslip, NY (ISP) to Tampa, FL (TPA)460 flights analyzedVariable69.1%on timeISP→FLLIslip, NY (ISP) to Fort Lauderdale, FL (FLL)392 flights analyzedVariable66.8%on time
Airline departure comparison
Marketing carriers with at least 600 departures receive a dedicated airport-airline report.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 2,642 | 76.6% | 13.0% | 1.5% |
| JetBlue Airways | 1,471 | 69.2% | 18.7% | 2.2% |
| Frontier Airlines | 873 | 70.4% | 19.4% | 3.0% |
Origin report, not airport-wide operations.
These figures summarize the reported scheduled passenger flights in the dataset, not every flight or every airport process.