TPA → ISP Southwest Airlines

Southwest Airlines · Tampa, FL to Islip, NY · 99 flights, 2025-07-05 to 2026-06-28 · aggregated across 14 flight numbers

This route runs much more reliably at some times of day than others — 100% on-time departing 6–9am vs. 57% departing 12–3pm.
On-time arrival
67%
Median delay
+1 min
90th percentile
+35 min
Cancellation rate
2%

How on-time is Southwest Airlines from TPA to ISP?

Across every Southwest Airlines flight number on TPA → ISP (99 flights, 2025-07-05 to 2026-06-28), 67% arrived within 15 minutes of schedule. Median arrival delay +1 min; the worst 10% ran +35 min or later. 2% were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time6567%
16-30 min1819%
31-60 min1010%
61-120 min33%
2+ hrs11%

Performance by month

MonthFlightsOn-timeAvg delay
2025-07863%+25 min
2025-08967%+7 min
2025-09888%-2 min
2025-11757%+17 min
2025-121377%+6 min
2026-017100%-11 min
2026-021765%+17 min
2026-031030%+21 min
2026-04560%+8 min
2026-05580%+7 min
2026-06863%+10 min

Performance by day of week

DayFlightsOn-time
Mon771%
Tue4100%
Wed1100%
Thu540%
Fri875%
Sat4267%
Sun3063%

Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…