Southwest Airlines departures from Islip, NY (ISP)

Arrival outcomes for 2,642 Southwest Airlines marketed flights departing ISP in July 2025–June 2026.

HISTORICAL ROUTE SIGNALGenerally reliable

76.6%arrived on time

13.0%30+ min late

1.5%cancelled

2,642scheduled flights

Based on July 2025–June 2026; on time means arrival less than 15 minutes late.

30+ minutes late13.0%

60+ minutes late6.2%

Cancelled1.5%

Diverted0.3%

Read this comparison in context

This page isolates one marketing carrier at one origin airport. Compare it with the parent ISP report before drawing a conclusion: airlines can serve different destinations and departure times from the same airport.

Compare all airlines at ISP