American Airlines is the most reliable airline on the BUF to CLT route with a 78% on-time rate, compared to Frontier Airlines at 67%. Based on 4,067 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: BUF to CLT
Buffalo to Charlotte — airline reliability comparison
On-Time Rate by Airline
American Airlines78%
Frontier Airlines67%
BUF to CLT Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| American AirlinesAABest | 78% | 1.5% | 99m | 4,067 |
| Frontier AirlinesF9Worst | 67% | 8.5% | 62m | 36 |
Route Overview
78%
Overall On-Time
99m
Avg Delay
1.6%
Cancel Rate
4,164
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.