Southwest Airlines is the most reliable airline on the BNA to ISP route with a 92% on-time rate. Based on 87 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: BNA to ISP
Nashville to Islip — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines92%
BNA to ISP Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 92% | 2.3% | 43m | 87 |
Route Overview
92%
Overall On-Time
42m
Avg Delay
2.3%
Cancel Rate
87
Total Flights
Flying out of BNA? 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.