How often are COS to DEN flights on time?

Flights from Colorado Springs (COS) to Denver (DEN) arrive on time 87% of the time across 26,278 flights of official data.

Which airline is most reliable on the COS to DEN route?

Southwest Airlines has the best on-time record on this route at 88% across 6,794 flights.

Route reliability

Flights from Colorado Springs to Denver arrive on time 87% of the time across 26,278 flights. Here’s how each airline really performs.

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On-time rate

26,278 flights

Airline	On-time	Flights
Southwest Airlines	88%	6,794
United Airlines	86%	19,484

On-time = arrived within 15 minutes of schedule, per BTS TranStats. Compare the reverse leg DEN → COS.

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Score real COS–DEN flights on reliability, weather, and connection safety — not just price.

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