Outbound
2 hours 30 minutes
Return
2 hours 40 minutes
Daily Flights
12+
Airlines
3
Timezone note
Houston is 1 hour ahead of Denver (Central vs Mountain Time).
About this route
Denver to Houston flights
Denver to Houston connects two major United hubs, making this route a priority for the carrier with high frequency and wide aircraft selection. Southwest and Frontier add competitive pricing pressure. The route serves energy industry business travelers, families visiting relatives, and cruise passengers connecting through Houston's port.
Houston's Gulf Coast weather can bring sudden thunderstorms that halt ground operations at IAH, especially in spring and summer. Denver's own afternoon convective activity means both ends of this route are delay-prone. Landing alerts are particularly valuable when storms are in the forecast at either airport.
Airlines
Airlines on this route
How it works
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FAQ
Frequently asked questions.
How long is the Denver to Houston flight?
About 2 hours 30 minutes southbound to IAH and 2 hours 40 minutes on the return.
Which airlines fly DEN to IAH?
United operates the most frequencies as both are hubs. Southwest and Frontier also serve the route.
Is Houston prone to flight delays?
Yes, IAH experiences frequent thunderstorm delays in spring and summer. Landing alerts help you track actual arrival times.
Know when they land in Houston
Avoid waiting at arrivals. Get a text the moment their Denver to Houston flight touches down.
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Aviation lover who built SkyText because families deserve to know when someone lands safely. Has tracked more flights than he'd like to admit.