Nashville to Boston — airline reliability comparison
Republic Airways is the most reliable airline on the BNA to BOS route with a 87% on-time rate, compared to Southwest Airlines at 71%. Based on 1,210 flights tracked.
This route involves weather-prone airports, which can affect reliability regardless of airline.
Source: Bureau of Transportation Statistics. Updated October 2026.| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Republic AirwaysYXBest | 87% | 1.7% | 77m | 1,210 |
| SkyWest AirlinesOO | 86% | 0.0% | 42m | 101 |
| Delta Air LinesDL | 80% | 1.2% | 102m | 1,905 |
| Spirit AirlinesNK | 75% | 3.4% | 79m | 501 |
| JetBlue AirwaysB6 | 74% | 2.3% | 88m | 2,717 |
| Southwest AirlinesWNWorst | 71% | 1.3% | 52m | 3,182 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.