Southwest Airlines is the most reliable airline on the GEG to MDW route with a 89% on-time rate. Based on 127 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: GEG to MDW
Spokane to Chicago — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines89%
GEG to MDW Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 89% | 0.8% | 29m | 127 |
Route Overview
90%
Overall On-Time
28m
Avg Delay
0.8%
Cancel Rate
127
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.