How often are HOU to DEN flights on time?

Flights from Houston (HOU) to Denver (DEN) arrive on time 86% of the time across 16,049 flights of official data.

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

Southwest Airlines has the best on-time record on this route at 87% across 15,354 flights.

Route reliability

Flights from Houston to Denver arrive on time 86% of the time across 16,049 flights. Here’s how each airline really performs.

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On-time rate

16,049 flights

Airline	On-time	Flights
Southwest Airlines	87%	15,354
Frontier Airlines	79%	695

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

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

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