Cheap flight deals from Denver to Houston Starting at $18

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

Round-trip
One way

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to fly from Denver to Houston?

We monitor flight fares to help you find the best deals effortlessly

Cheapest flights

From price

16 23
23 30
Apr

30 6
6 13
13 20
20 27
May

27 4
4 11
11 18
18 25
Jun

25 1
1 8

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

When are flight tickets from Denver (DEN) to Houston (HOU) the cheapest?

Airlines adjust prices for flights from Denver to Houston based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much do flights from Denver (DEN) to Houston (HOU) cost?

According to Trip.com's data, the lowest price is around $233.
How long does it take to fly from Denver (DEN) to Houston (HOU) and what is the distance?

It takes around 3 hours 31 minutes to fly from Denver (DEN) to Houston (HOU).
What are the most popular airlines that fly from Denver (DEN) to Houston (HOU)?

Airlines with flights from Denver (DEN) to Houston (HOU): United Airlines, Southwest Airlines, Volaris, Air Canada and Frontier Airlines.

How to find a cheap flight from Denver to Houston

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Denver to Houston. Book your flights at the right time and save more.

Be flexible with your travel dates to get the cheapest Denver to Houston ticket.

Tap "Date" in the flight search bar to browse the calendar and find airfare from Denver to Houston for the next six months in 2025. If you're looking to fly within the next three months, the lowest fare is $18 for a one-way ticket on Wed, Mar 19.

Compare cheap Denver to Houston flight deals from hundreds of airlines.

Our powerful search system compares prices from over 500 airlines. So you can find the cheapest flights from Denver to Houston. The most affordable airline currently operating on this route is Frontier Airlines.

Set up a Price Alert to track fare drops.

Set up a Price Alert for your Denver to Houston route to track ticket prices effortlessly—no need to check manually every day.

Don't miss out on cheap Denver to Houston flight deals and promo codes.

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Book early or wait unitl the last minute to fine the best fares.

It's always better to book early! Airlines typically release their lowest fares about a year before departure, so check as soon as flights become available. If you miss that window, you may still find great deals closer to your travel date.

Search for flights on the go.

For the best booking experience on the go, download Trip.com and search for cheap flights from Denver to Houston to access exclusive deals just for you.

Flight Info | Denver to Houston

Cheapest nonstop flight price	$18
Cheapest round-trip ticket price	$35
Off-season for travel	February
Peak season for travel	December
Flight distance	1,420.15 km
Average flight time	3 hours 31 minutes
Popular airline	Frontier Airlines