JetBlue Airways is the most reliable airline on the ISP to FLL route with a 75% on-time rate, compared to Frontier Airlines at 75%. Based on 583 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: ISP to FLL
Islip to Fort Lauderdale — airline reliability comparison
On-Time Rate by Airline
JetBlue Airways75%
Frontier Airlines75%
ISP to FLL Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| JetBlue AirwaysB6Best | 75% | 0.8% | 70m | 583 |
| Frontier AirlinesF9Worst | 75% | 2.6% | 105m | 542 |
Route Overview
74%
Overall On-Time
84m
Avg Delay
1.8%
Cancel Rate
1,201
Total Flights
Flying out of ISP? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.