Islip (ISP) to Fort Myers (RSW): On-Time Performance
Data through May 2026
Islip (ISP) to Fort Myers (RSW) is a thinner route than most in this dataset — 111 departures over the past year, roughly 2 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 66% arrived on time, noticeably below the national average of 78%. Cancellations are the bigger caveat: 3.3% of scheduled flights never departed.
- On-time
- 66%
- arrived <15 min late
- Avg delay
- 26 min
- completed flights
- Cancelled
- 3.3%
- Flights/day
- 0.30
- last 12 months
- Duration
- 3h 10m
- scheduled
- Distance
- 1,101 mi
Best airline from ISP to RSW
2 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Frontier Airlinesmost reliable | 74% | 32 min | 3.8% | 79 |
| JetBlue Airways | 59% | 22 min | 2.9% | 104 |
Monthly on-time trend
Best time to fly from ISP to RSW
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 50% | 41 min |
| Tuesday | 59% | 23 min |
| Wednesday | 80% | 15 min |
| Thursday | 66% | 24 min |
| Fridaybest | 81% | 22 min |
| Saturday | 69% | 24 min |
| Sunday | 59% | 33 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft23%
- Airline operations49%
- National airspace system28%
Frequently asked questions
- How often are flights from ISP to RSW delayed?
- 35% of ISP–RSW flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 26 minutes.
- Which airline is most reliable from ISP to RSW?
- Frontier Airlines has the best on-time record on this route at 74%, based on 79 flights. 2 airlines flew ISP–RSW frequently enough to compare in this period.
- How long is the flight from ISP to RSW?
- The scheduled ISP–RSW flight time averages 3h 10m over 1,101 miles. Actual arrival times vary — flights on this route land 15+ minutes late 35% of the time.
- How often are ISP to RSW flights cancelled?
- 3.3% of scheduled flights on this route were cancelled between 2024-06 and 2026-05 — several times the typical US rate, so consider earlier departures or backup options.
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Based on 183 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.