Southwest Airlines is the most reliable airline on the ISP to BNA route with a 93% on-time rate. Based on 87 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: ISP to BNA
Islip to Nashville — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines93%
ISP to BNA Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 93% | 2.3% | 21m | 87 |
Route Overview
93%
Overall On-Time
20m
Avg Delay
2.3%
Cancel Rate
87
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.