How often are DEN to HOU flights on time?

Flights from Denver (DEN) to Houston (HOU) arrive on time 80% of the time across 15,854 flights of official data.

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

Frontier Airlines has the best on-time record on this route at 84% across 695 flights.

Route reliability

Flights from Denver to Houston arrive on time 80% of the time across 15,854 flights. Here’s how each airline really performs.

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On-time rate

15,854 flights

Airline	On-time	Flights
Frontier Airlines	84%	695
Southwest Airlines	80%	15,159

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

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