Frontier Airlines is the most reliable airline on the RDU to BUF route with a 67% on-time rate. Based on 277 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: RDU to BUF
Raleigh to Buffalo — airline reliability comparison
On-Time Rate by Airline
Frontier Airlines67%
RDU to BUF Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Frontier AirlinesF9Best | 67% | 3.3% | 77m | 277 |
Route Overview
68%
Overall On-Time
78m
Avg Delay
3.2%
Cancel Rate
277
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.