Southwest Airlines is the most reliable airline on the COS to BWI route with a 87% on-time rate. Based on 472 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: COS to BWI
Colorado Springs to Baltimore — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines87%
COS to BWI Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 87% | 0.4% | 47m | 472 |
Route Overview
86%
Overall On-Time
50m
Avg Delay
0.4%
Cancel Rate
472
Total Flights
Flying out of COS? We'll brief you.
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Data last updated October 2026. Source: Bureau of Transportation Statistics.