Flights from IAH to DEN: Travel Guide & Ticket Tips
Cheapest flight found
$103
Last updated Mar 13, 2026
Prices by Month
Price History
Tracking the Apr 2, 2026 departure — the cheapest date we found.
Price Behavior: IAH → DEN
Based on 6 months of fare data collected by Trip Manta.
Lowest Fare
$103
Highest Fare
$181
Median Fare
$130
Price Spread
$78
Prices vary significantly — hourly tracking is especially valuable here.
Cheapest month to fly: April 2026 (from $103)
Most expensive month: July 2026 (from $181)
Biggest price drop caught: $30 between consecutive checks
Most frequent cheapest airline: Frontier
What This Means for You
Flights from Houston to Denver range from $103 to $181, a $78 spread across the months we track. If your dates are flexible, April 2026 tends to have the lowest fares. Because prices on this route change significantly, setting up hourly price alerts gives you the best chance of catching a short-lived drop before it corrects. We have caught drops as large as $30 between hourly checks on this route.
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From
Houston (IAH)
To
Denver (DEN)
Airport Information
Houston (IAH)
George Bush Intercontinental Airport (IAH) serves as the primary international gateway for Houston and the surrounding Southeast Texas region. As a premier global hub for United Airlines, it features five expansive terminals linked by an efficient automated people mover system. Passengers can enjoy a wide array of high-end Tex-Mex dining options, local boutiques, and several premium lounges that cater to international business travelers.
Denver (DEN)
Denver International Airport (DEN) is world-renowned for its iconic white fabric roof, which mimics the snow-capped peaks of the nearby Rocky Mountains. It is currently one of the largest airports in the world by total land area, providing ample space for its three massive concourses. Travelers can enjoy modern amenities, including outdoor observation decks in Concourses A and B, which offer stunning views of the Colorado plains.
Frequently Asked Questions
How long is the average flight from Houston to Denver?
The average flight time from IAH to DEN is approximately 2 hours and 35 minutes, covering a distance of about 862 miles.
Which airlines offer direct flights from IAH to DEN?
United Airlines, Frontier Airlines, and Southwest Airlines frequently offer direct, non-stop service between these two cities.
What is the best way to get from Denver Airport to downtown?
The RTD A-Line commuter train is the most popular option, costing around $10.50 and taking passengers directly to Denver Union Station.
When is the cheapest time to fly from Houston to Denver?
Mid-week flights, specifically on Tuesdays and Wednesdays in late August or early February, tend to offer the lowest airfares.
Is there a time difference between Houston and Denver?
Yes, Denver is in the Mountain Time Zone (MST/MDT), which is one hour behind Houston's Central Time Zone (CST/CDT).
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