Southwest Airlines is the most reliable airline on the BUF to PHX route with a 80% on-time rate. Based on 571 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: BUF to PHX
Buffalo to Phoenix — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines80%
BUF to PHX Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 80% | 0.3% | 41m | 571 |
Route Overview
79%
Overall On-Time
42m
Avg Delay
0.4%
Cancel Rate
571
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.