Frontier Airlines is the most reliable airline on the CLT to BUF route with a 79% on-time rate, compared to American Airlines at 73%. Based on 36 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: CLT to BUF
Charlotte to Buffalo — airline reliability comparison
On-Time Rate by Airline
Frontier Airlines79%
American Airlines73%
CLT to BUF Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Frontier AirlinesF9Best | 79% | 8.5% | 52m | 36 |
| American AirlinesAAWorst | 73% | 1.4% | 70m | 4,066 |
Route Overview
73%
Overall On-Time
70m
Avg Delay
1.5%
Cancel Rate
4,163
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.