Frontier Airlines is the most reliable airline on the PHX to MDW route with a 80% on-time rate, compared to Southwest Airlines at 79%. Based on 886 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: PHX to MDW
Phoenix to Chicago — airline reliability comparison
On-Time Rate by Airline
Frontier Airlines80%
Southwest Airlines79%
PHX to MDW Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Frontier AirlinesF9Best | 80% | 1.3% | 82m | 886 |
| Southwest AirlinesWNWorst | 79% | 0.9% | 47m | 9,728 |
Route Overview
79%
Overall On-Time
50m
Avg Delay
0.9%
Cancel Rate
10,678
Total Flights
Flying out of PHX? We'll brief you.
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Data last updated October 2026. Source: Bureau of Transportation Statistics.