Southwest Airlines is the most reliable airline on the STL to BNA route with a 84% on-time rate. Based on 4,549 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: STL to BNA
St. Louis to Nashville — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines84%
STL to BNA Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 84% | 1.0% | 49m | 4,549 |
Route Overview
84%
Overall On-Time
49m
Avg Delay
0.9%
Cancel Rate
4,549
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.