Charlotte to Boston — airline reliability comparison
Republic Airways is the most reliable airline on the CLT to BOS route with a 84% on-time rate, compared to Spirit Airlines at 60%. Based on 4,576 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 | 84% | 2.1% | 70m | 4,576 |
| JetBlue AirwaysB6 | 79% | 1.9% | 93m | 1,258 |
| American AirlinesAA | 73% | 1.5% | 66m | 9,900 |
| Frontier AirlinesF9 | 71% | 1.2% | 79m | 124 |
| Spirit AirlinesNKWorst | 60% | 5.7% | 80m | 468 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.