Southwest Airlines is the most reliable airline on the MDW to SAN route with a 76% on-time rate. Based on 3,822 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: MDW to SAN
Chicago to San Diego — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines76%
MDW to SAN Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 76% | 1.1% | 48m | 3,822 |
Route Overview
75%
Overall On-Time
48m
Avg Delay
1.2%
Cancel Rate
3,822
Total Flights
Flying out of MDW? We'll brief you.
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Data last updated October 2026. Source: Bureau of Transportation Statistics.