Southwest Airlines is the most reliable airline on the STL to CHS route with a 82% on-time rate. Based on 278 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: STL to CHS
St. Louis to Charleston — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines82%
STL to CHS Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 82% | 0.0% | 50m | 278 |
Route Overview
82%
Overall On-Time
47m
Avg Delay
0%
Cancel Rate
278
Total Flights
Flying out of STL? We'll brief you.
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Data last updated October 2026. Source: Bureau of Transportation Statistics.