Southwest Airlines is the most reliable airline on the MDW to CHS route with a 79% on-time rate. Based on 1,592 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: MDW to CHS
Chicago to Charleston — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines79%
MDW to CHS Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 79% | 0.7% | 56m | 1,592 |
Route Overview
77%
Overall On-Time
55m
Avg Delay
0.6%
Cancel Rate
1,592
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.