Southwest Airlines is the most reliable airline on the PWM to BNA route with a 74% on-time rate. Based on 297 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: PWM to BNA
Portland to Nashville — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines74%
PWM to BNA Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 74% | 0.3% | 58m | 297 |
Route Overview
74%
Overall On-Time
59m
Avg Delay
0.3%
Cancel Rate
297
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.