United Flights from Denver (DEN) to Houston (IAH)

At Denver, CO (DEN-Denver Intl.), United Airlines flights to Houston, TX (IAH-George Bush Intercontinental) usually head off from the main terminal. Wondering exactly which terminal you'll be hopping off the plane at? It's most likely to be terminal C.

Direct flights can be booked with United Airlines, which means you'll be able to fly from Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental) quickly. Those memorable travel experiences you desire are one simple flight away.

Enjoy some in-flight shut-eye and start your vacation feeling refreshed and relaxed. You'll have more than enough time to do so when traveling with United Airlines between Denver, CO (DEN-Denver Intl.) and Houston, TX (IAH-George Bush Intercontinental), with the flight taking around 4 hours and 42 minutes.

When you fly the skies between DEN and IAH with United Airlines, you'll usually be doing it aboard the Boeing 737-900. The carrier also operates the Boeing 777 on this route.

Take your pick of 8 flights every day with United Airlines from Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental).

For more info about changing your flight to Houston, TX (IAH-George Bush Intercontinental), please visit our Customer Service Portal.

This just in! Airfares offered on Tuesdays tend to be the cheapest, according to flight demand on Travelocity in 2019. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Monday, as data shows the start of the week is when prices are generally at their highest.

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2019, flights departing on a Tuesday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2019 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 1-2 weeks prior to their travel dates.

We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2019 saved nearly 50% when their return flights consisted of two different airlines or fare types.

*According to flight demand on Travelocity.com from January to December 2019. Savings are subject to change based on departure location, date and destination.