Southwest Airlines is the most reliable airline on the BWI to CHS route with a 77% on-time rate. Based on 4,328 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: BWI to CHS
Baltimore to Charleston — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines77%
BWI to CHS Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 77% | 1.1% | 51m | 4,328 |
Route Overview
77%
Overall On-Time
51m
Avg Delay
1.1%
Cancel Rate
4,357
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.