Southwest Airlines is the most reliable airline on the SAN to COS route with a 63% on-time rate. Based on 172 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: SAN to COS
San Diego to Colorado Springs — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines63%
SAN to COS Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 63% | 0.9% | 44m | 172 |
Route Overview
64%
Overall On-Time
45m
Avg Delay
0.6%
Cancel Rate
172
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.