Southwest Airlines is the most reliable airline on the MKE to PHX route with a 83% on-time rate, compared to American Airlines at 81%. Based on 3,368 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: MKE to PHX
Milwaukee to Phoenix — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines83%
American Airlines81%
MKE to PHX Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 83% | 0.7% | 51m | 3,368 |
| American AirlinesAAWorst | 81% | 0.6% | 136m | 1,622 |
Route Overview
83%
Overall On-Time
86m
Avg Delay
0.7%
Cancel Rate
4,994
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.