Republic Airways is the most reliable airline on the MIA to BUF route with a 80% on-time rate, compared to American Airlines at 58%. Based on 10 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: MIA to BUF
Miami to Buffalo — airline reliability comparison
On-Time Rate by Airline
Republic Airways80%
American Airlines58%
MIA to BUF Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Republic AirwaysYXBest | 80% | 0.0% | 67m | 10 |
| American AirlinesAAWorst | 58% | 0.0% | 161m | 12 |
Route Overview
74%
Overall On-Time
101m
Avg Delay
2.8%
Cancel Rate
36
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.