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Cheap flights from Denver to Houston from $43

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Houston departing on 1/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
9:00 pm - 12:33 am
DEN
-
IAH
2h 33mnonstop
Frontier Logo
6:45 pm - 8:34 pm
IAH
-
DEN
2h 49mnonstop
$87Frontier
Thu, Jan 29 - Sun, Feb 1
Frontier Logo
2:58 pm - 6:36 pm
DEN
-
IAH
2h 38mnonstop
Frontier Logo
6:35 am - 8:16 am
IAH
-
DEN
2h 41mnonstop
$88Frontier
Wed, Jan 14 - Sun, Jan 18
Frontier Logo
2:26 pm - 6:00 pm
DEN
-
IAH
2h 34mnonstop
Frontier Logo
6:45 am - 8:26 am
IAH
-
DEN
2h 41mnonstop
$89Frontier
Sun, Feb 1 - Sun, Feb 8
Frontier Logo
2:47 pm - 6:15 pm
DEN
-
IAH
2h 28mnonstop
Frontier Logo
4:08 pm - 5:53 pm
IAH
-
DEN
2h 45mnonstop
$93Frontier
Wed, Jan 7 - Sat, Jan 31
Frontier Logo
7:59 pm - 11:39 pm
DEN
-
IAH
2h 40mnonstop
Frontier Logo
6:45 am - 8:26 am
IAH
-
DEN
2h 41mnonstop
$95Frontier
Tue, Feb 3 - Tue, Feb 24
Frontier Logo
6:45 pm - 10:15 pm
DEN
-
IAH
2h 30mnonstop
Frontier Logo
6:35 am - 8:16 am
IAH
-
DEN
2h 41mnonstop
$97Frontier
Sat, Jan 10 - Sun, Jan 18
Frontier Logo
6:00 am - 9:30 am
DEN
-
IAH
2h 30mnonstop
Frontier Logo
7:35 am - 9:20 am
IAH
-
DEN
2h 45mnonstop
$98Frontier
Fri, Jan 9 - Wed, Jan 14
Frontier Logo
1:01 pm - 11:48 pm
DEN
-
IAH
9h 47m1 stop
Frontier Logo
4:08 pm - 5:53 pm
IAH
-
DEN
2h 45mnonstop
$100Frontier
Sat, Jan 17 - Sat, Jan 24
Frontier Logo
10:29 pm - 1:48 pm
DEN
-
IAH
14h 19m1 stop
Frontier Logo
4:08 pm - 5:53 pm
IAH
-
DEN
2h 45mnonstop
$105Frontier
Fri, Jan 30 - Wed, Feb 4
Frontier Logo
6:00 am - 9:30 am
DEN
-
IAH
2h 30mnonstop
Frontier Logo
7:35 am - 9:20 am
IAH
-
DEN
2h 45mnonstop
$106Frontier
Mon, Jan 12 - Wed, Jan 14

Frontier flights from Denver to Houston George Bush Intcntl Airport

Our best Frontier deals on Denver to Houston George Bush Intcntl Airport flight tickets
Frontier
Jan 29
DEN9:00 pmDenver Intl
2h 33m
IAH12:33 amHouston George Bush Intcntl
Feb 1
IAH6:45 pmHouston George Bush Intcntl
2h 49m
DEN8:34 pmDenver Intl
$87
Find similar
Frontier
Jan 14
DEN2:58 pmDenver Intl
2h 38m
IAH6:36 pmHouston George Bush Intcntl
Jan 18
IAH6:35 amHouston George Bush Intcntl
2h 41m
DEN8:16 amDenver Intl
$88
Find similar
Frontier
Feb 1
DEN2:26 pmDenver Intl
2h 34m
IAH6:00 pmHouston George Bush Intcntl
Feb 8
IAH6:45 amHouston George Bush Intcntl
2h 41m
DEN8:26 amDenver Intl
$89
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Denver to Houston George Bush Intcntl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 22, 2025.
Use the filters below to find and compare flights from Denver to Houston George Bush Intcntl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Thu 1/29

9:00 pm-12:33 am

Nonstop2h 33m

Houston George Bush Intcntl

Sun 2/1

6:45 pm-8:34 pm

Nonstop2h 49m

$87

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Wed 1/14

2:58 pm-6:36 pm

Nonstop2h 38m

Houston George Bush Intcntl

Sun 1/18

6:35 am-8:16 am

Nonstop2h 41m

$88

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Sun 2/1

2:26 pm-6:00 pm

Nonstop2h 34m

Houston George Bush Intcntl

Sun 2/8

6:45 am-8:26 am

Nonstop2h 41m

$89

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Wed 1/7

2:47 pm-6:15 pm

Nonstop2h 28m

Houston George Bush Intcntl

Sat 1/31

4:08 pm-5:53 pm

Nonstop2h 45m

$93

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Tue 2/3

7:59 pm-11:39 pm

Nonstop2h 40m

Houston George Bush Intcntl

Tue 2/24

6:45 am-8:26 am

Nonstop2h 41m

$95

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Sat 1/10

6:45 pm-10:15 pm

Nonstop2h 30m

Houston George Bush Intcntl

Sun 1/18

6:35 am-8:16 am

Nonstop2h 41m

$97

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Fri 1/9

6:00 am-9:30 am

Nonstop2h 30m

Houston George Bush Intcntl

Wed 1/14

7:35 am-9:20 am

Nonstop2h 45m

$98

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Sat 1/17

1:01 pm-11:48 pm

1 stop9h 47m

Houston George Bush Intcntl

Sat 1/24

4:08 pm-5:53 pm

Nonstop2h 45m

$100

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Fri 1/30

10:29 pm-1:48 pm

1 stop14h 19m

Houston George Bush Intcntl

Wed 2/4

4:08 pm-5:53 pm

Nonstop2h 45m

$105

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Mon 1/12

6:00 am-9:30 am

Nonstop2h 30m

Houston George Bush Intcntl

Wed 1/14

7:35 am-9:20 am

Nonstop2h 45m

$106

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Houston from

How to get the cheapest flight ticket from Denver to Houston George Bush Intcntl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Houston George Bush Intcntl Airport?

The month of January is, on average, the cheapest month to fly to Houston George Bush Intcntl Airport from Denver, with most prices found around $135. If you are unable to visit Houston George Bush Intcntl Airport during the month of January, then departing from Denver during the month February is also very affordable. Most momondo users find prices during this month for around $137.

What is the cheapest day to depart on your flight to Houston George Bush Intcntl Airport?

The cheapest day to depart from Denver to Houston George Bush Intcntl Airport is on a Thursday. Travelers who choose to depart for Houston George Bush Intcntl Airport on a Thursday will often find tickets for as low as $346. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Houston George Bush Intcntl Airport on Sunday is $540.

What is the cheapest time of day to depart on your flight to Houston George Bush Intcntl Airport?

Our data shows that the cheapest Denver to Houston George Bush Intcntl Airport flights are usually those with departure times in the evening. Our users have found flights to Houston George Bush Intcntl Airport in the evening for as low as $233. Try not to purchase tickets at noon because they tend to be around $673. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Denver Intl to Houston George Bush Intcntl flight route?

Fly from Denver Intl to Houston George Bush Intcntl for the best Denver Intl - Houston George Bush Intcntl flight prices

How far in advance should I book a flight to Houston George Bush Intcntl Airport?

You are more likely to see cheaper flights to Houston George Bush Intcntl Airport from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston George Bush Intcntl Airport for around $194 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston George Bush Intcntl Airport from Denver for as low as $149 on momondo.

What cabin class options are available on Denver Intl to Houston George Bush Intcntl flights?

There are 4 cabin classes available to choose from on Denver Intl to Houston George Bush Intcntl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Denver to Houston George Bush Intcntl Airport flights?

No. A direct flight is the cheapest option for a flight between Denver to Houston George Bush Intcntl Airport.

How have Denver to Houston George Bush Intcntl Airport flight prices changed over time?

As of December 2025, prices for Denver to Houston George Bush Intcntl Airport flights are approximately 36% cheaper when compared to flights at the same time last year.

When to book flights from Denver to Houston George Bush Intcntl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Denver to Houston George Bush Intcntl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Denver to Houston George Bush Intcntl Airport (DEN to IAH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to Houston George Bush Intcntl Airport

Best Price Found

$146

Fastest flight time

2h 20m

Direct flights

Every day
The best one-way flight to Houston George Bush Intcntl Airport from Denver in the past 72 hours is $146. The best round-trip flight deal from Denver to Houston George Bush Intcntl Airport found on momondo in the last 72 hours is $262.
The fastest flight from Denver to Houston George Bush Intcntl Airport takes 2h 20m
Direct flights go from Denver to Houston George Bush Intcntl Airport every day.
Search flight deals

  • How far is Denver Intl to Houston George Bush Intcntl by plane?

    There are 865.9 mi between Denver Intl and Houston George Bush Intcntl. 2h 20m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Denver Intl Airport to Houston George Bush Intcntl Airport?

    Prices for flights from Denver Intl Airport to Houston George Bush Intcntl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Denver Intl Airport to Houston George Bush Intcntl Airport?

  • How old do you have to be to fly from Denver Intl Airport to Houston George Bush Intcntl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport to Houston George Bush Intcntl Airport.

  • What documentation or ID do you need to fly to Houston George Bush Intcntl Airport?

    The required travel and health documents for your Houston George Bush Intcntl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Houston George Bush Intcntl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Denver to Houston George Bush Intcntl Airport?

  • What is the most popular airline from Denver to Houston George Bush Intcntl Airport?

Best airlines flying from Denver to Houston George Bush Intcntl Airport

Compare and see reviews for airlines that fly from Denver to Houston George Bush Intcntl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $67Free CancellationRating
5.8
3,078 reviews
Search Frontier flights
United AirlinesPriceFrom $177Free CancellationRating
7.4
9,102 reviews
Search United Airlines flights

  • United Airlines Flights From Denver to Houston George Bush Intcntl Airport

    Across 69 United Airlines flights from Denver to Houston George Bush Intcntl Airport this week, the average price was $350, with the best United Airlines deals starting from $177 round-trip. 9,104 users have rated United Airlines on momondo, with an average score of 7.4/10.

  • Frontier Flights From Denver to Houston George Bush Intcntl Airport

    Frontier is also a popular choice for this route. Frontier flight deals for Denver to Houston George Bush Intcntl Airport start from as low as $67 round-trip, depending on your selected dates, with average Frontier deals seen on momondo around $171. Frontier operates 15 flights to Houston George Bush Intcntl Airport from Denver in an average week. Users have rated it 5.8/10 across 3,076 reviews.

Traveling to a place near Houston?

Book flights to Houston if you plan to visit one of these locations
The Woodlands
Katy
Conroe
Cypress
Humble
Spring
Montgomery
Tomball
Livingston
Jersey Village

Why use momondo?

Why should I use momondo to find a flight deal from Denver to Houston?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Denver to Houston. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Denver to Houston with flexible booking policies on momondo?

momondo does allow users to show only those flights to Houston from Denver which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Denver to Houston?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Denver to Houston.

I’m not ready to book a flight from Denver to Houston right now. Can momondo alert me if prices change?

Price alerts on flights to Houston from Denver are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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