Delta Air Lines is the most reliable airline on the BNA to SLC route with a 89% on-time rate, compared to Southwest Airlines at 76%. Based on 3,182 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: BNA to SLC
Nashville to Salt Lake City — airline reliability comparison
On-Time Rate by Airline
Delta Air Lines89%
Southwest Airlines76%
BNA to SLC Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Delta Air LinesDLBest | 89% | 0.8% | 62m | 3,182 |
| Southwest AirlinesWNWorst | 76% | 1.1% | 51m | 407 |
Route Overview
87%
Overall On-Time
60m
Avg Delay
0.7%
Cancel Rate
3,730
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.