Direct flights from Houston to Denver
All flights from IAH to DEN non-stop. There are direct flights from George Bush Intcntl Houston (IAH), Texas, USA to Denver International (DEN), Colorado, USA with United Airlines and Frontier Airlines. 100 weekly departures are currently scheduled on this route. Departure times range from 05:05 to 22:15 depending on the schedule period. The flight distance is 866 miles (1393 km). Flight time ranges from 2 hours and 25 minutes to 3 hours and 2 minutes.
Houston
, USA
Airlines with non-stop routes:
United Airlines
Frontier Airlines
Southwest Airlines
Spirit Airlines
Flight schedule from Houston to Denver with United Airlines
This is a weekly direct flight schedule for United Airlines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.
Flight
The timetable & schedule information was updated at 2026-06-29
Flight schedule from Houston to Denver with Frontier Airlines
This is a weekly direct flight schedule for Frontier Airlines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.
Flight
The timetable & schedule information was updated at 2026-06-29
Houston to Denver scheduled departures
Select a date to see every published non-stop departure between IAH and DEN.
IAH - DEN route facts
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Distance866 miles (1393 km)
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Flight time2 hours and 25 minutes to 3 hours and 2 minutes
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Airlines United Frontier
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Airline alliancesStar Alliance Low-cost carrier
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CabinsEconomy Premium Economy Business First
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Hub airportsUnited Airlines: DEN and IAH
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Departure terminalsUnited Airlines: Terminal CFrontier Airlines: Terminal A
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AircraftUnited Airlines: Boeing 737-900 Passenger, Airbus A321neo, Boeing 757-300 Passenger and Boeing 737MAX 9 PassengerFrontier Airlines: Airbus A320neo, Airbus A320, Airbus A321 and Airbus A321neo
Route FAQ
Nearby airports that offer flights to Denver (DEN)
From Hobby Airport (HOU)
51 flights per week
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