The cheapest times to fly from IAH to DEN are

  • January 1st to March 4th (except the week of February 12th)
  • August 6th to December 16th (except the weeks of November 19th and November 26th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from IAH to DEN is early to mid September. Prices can be as high as $678 for Sunday flights during early March, or as low as $114 for Tuesday flights around early to mid September.


When to Fly to Denver

Flying from Houston, TX (IAH) to Denver, CO (DEN) will usually cost between $136 to $399 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early to mid September with an average ticket price of $150. Due to high demand the most expensive time to fly is early March, with an average price of $470. Planning your trip to low-cost times can easily save you $320 on economy flights and even more on first-class flights. Generally, any price below $233 can be considered a good price for a round-trip IAH to DEN flight.

See below for a graph of average weekly prices for the IAH to DEN route. All prices are for round-trip tickets in USD.

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IAH to DEN Flight Prices

Compared to other flights, the IAH to DEN flight is much cheaper than the average and costs much less than the average flight leaving from Houston. The average price per mile (for a direct flight) is $0.17, which is below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $80 (28%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $206. Return trip prices are from the DEN to IAH flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

[wp_charts colors=”F38630″ scaleoverride=”true” scalesteps=”5″ scalestepwidth=”60″ scalestartvalue=”0″ title=”IAH to DEN prices by departure day of the week” width=”90%” type=”bar” align=”aligncenter” margin=”5px 20px” datasets=”285,263,206,206,266,270,238″ labels=”Sun,Mon,Tue,Wed,Thu,Fri,Sat”]

Departure Day Prices

Return Trip Prices by Day

[wp_charts colors=”F38630″ scaleoverride=”true” scalesteps=”5″ scalestepwidth=”60″ scalestartvalue=”0″ title=”IAH to DEN prices by returning day of the week” width=”90%” type=”bar” align=”aligncenter” margin=”5px 20px” datasets=”288,263,207,207,270,270,240″ labels=”Sun,Mon,Tue,Wed,Thu,Fri,Sat”]

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from IAH to DEN can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 2 hour 32 minutes may be realistic.


Flight Questions Answered

Still have questions about flying from IAH to DEN? We’ve got answers.

Which airlines fly this route?

You can find 9 major airlines flying this route most often: Alaska, American, Delta, Frontier, JetBlue, Qantas, Spirit, United, Virgin Australia, and potentially more during busy seasons.

How far away is it from Denver International Airport to George Bush Intercontinental/Houston Airport?

The distance between the two airports is roughly 862 miles or 1387 kilometers.

How long does it take to fly from IAH to DEN?

The real-world flight time for a nonstop IAH to DEN flight is about 2 hour 32 minutes.

How many flights go between Houston, TX and Denver, CO?

It depends on the day of the week and the date, but a typical day might have around 62 available flights from IAH to DEN.


Airport Location Info


Departing Airport

Origination code IAH
Origination airport name George Bush Intercontinental/Houston Airport
City Houston, TX
Country the United States
Latitude 30
Longitude -95.3

Return Airport

Destination code DEN
Destination airport name Denver International Airport
City Denver, CO
Country the United States
Latitude 39.9
Longitude -104.7


Late and Early Flight Data

Flights from IAH to DEN tend to depart as late as the average flight. According to our recently updated data, 30% of flights departed 5 or more minutes late, and 22% of flights left 5 or more minutes early. On average you can expect to leave DEN heading for IAH about 15 minutes late. This does significantly impact arrival time, as the average landing time in Denver, CO is about 13 minutes late. The numbers below show a recent average of take-off times versus the scheduled departure flight:

  • United: 14 minutes late
  • Spirit: 37 minutes late
  • Frontier: 7 minutes late
  • Some airlines not reporting


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.