Southwest Airlines is the most reliable airline on the PHX to BUF route with a 75% on-time rate. Based on 571 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: PHX to BUF
Phoenix to Buffalo — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines75%
PHX to BUF Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 75% | 0.5% | 49m | 571 |
Route Overview
74%
Overall On-Time
52m
Avg Delay
0.4%
Cancel Rate
571
Total Flights
Flying out of PHX? We'll brief you.
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Data last updated October 2026. Source: Bureau of Transportation Statistics.