Southwest Airlines is the most reliable airline on the PIT to BNA route with a 85% on-time rate, compared to Allegiant Air at 83%. Based on 3,132 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: PIT to BNA
Pittsburgh to Nashville — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines85%
Allegiant Air83%
PIT to BNA Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 85% | 0.6% | 56m | 3,132 |
| Allegiant AirG4Worst | 83% | 0.0% | 43m | 163 |
Route Overview
84%
Overall On-Time
58m
Avg Delay
0.5%
Cancel Rate
3,521
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.