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George Bush Intcntl

$43+ Cheap flights from Denver (DEN) to George Bush Intcntl (IAH)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — IAH
Jan 25 — Feb 11
Sun 1/25
Sun 2/1
1 adult, Economy
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Find cheap flights from Denver to George Bush Intcntl with Cheapflights

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Cheapflights Tip: The best prices from Denver Intl to Houston George Bush Intcntl are usually found in January or February, booked 63 days in advance, depart on a Thursday or Friday and return on a Wednesday

Cheap flight deals from Denver to George Bush Intcntl

Cheapest flights from Denver to George Bush Intcntl
Explore the most affordable flight options available from Denver to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 26, 2025.

This Super.com deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:07 pmDEN - IAH
Nonstop2h 31mFrontier
Tue 1/68:35 amIAH - DEN
Nonstop2h 42mFrontier
Deal found 12/23$181
This Expedia deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:07 pmDEN - IAH
Nonstop2h 31mFrontier
Wed 1/78:13 pmIAH - DEN
1 stop27h 46mFrontier
Deal found 12/24$211
This Expedia deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:07 pmDEN - IAH
Nonstop2h 31mFrontier
Sun 1/46:45 amIAH - DEN
Nonstop2h 42mFrontier
Deal found 12/24$260
This Frontier deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:00 amDEN - IAH
Nonstop2h 37mFrontier
Tue 1/63:57 pmIAH - DEN
Nonstop2h 43mFrontier
Deal found 12/24$262
This CheapOair deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2511:59 pmDEN - IAH
1 stop9h 35mFrontier
Fri 1/210:28 pmIAH - DEN
1 stop11h 27mFrontier
Deal found 12/24$268
This Super.com deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:05 amDEN - IAH
1 stop10h 09mFrontier
Wed 12/3110:35 pmIAH - DEN
1 stop11h 20mFrontier
Deal found 12/24$289
This Priceline deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2511:59 pmDEN - IAH
1 stop9h 35mFrontier
Sun 1/46:45 amIAH - DEN
Nonstop2h 42mFrontier
Deal found 12/24$291
This CheapOair deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2711:05 amDEN - IAH
1 stop9h 19mFrontier
Sun 1/1110:25 amIAH - DEN
Nonstop2h 47mFrontier
Deal found 12/23$296

Find flight deals from Denver to George Bush Intcntl

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to George Bush Intcntl (IAH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 26, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$77
(Frontier)

One-way from

$43
(Kiwi.com)

Popular in

May

Cheapest in

January

Average price

$229

Good round-trip deal

$262 or less

Good one-way deal

$146 or less
Provider with most accurate pricing for Denver Intl-Houston George Bush Intcntl flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Houston George Bush Intcntl flights.
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From Denver Intl to Houston George Bush Intcntl
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One-way flight from Denver Intl to Houston George Bush Intcntl
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Highest demand for flights based on searches. 10% potential increase in price ($22 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Price to beat on a round-trip flight from Denver Intl to Houston George Bush Intcntl.
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Price to beat on a one-way flight from Denver Intl to Houston George Bush Intcntl.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to George Bush Intcntl 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, Cheapflights users made 2,558,603 searches. Data last updated December 26, 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

Denver

Fly to

George Bush Intcntl

Route

Depart

Return

Price

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Mon 2/16

10:43 pm-7:23 pm

1 stop19h 40m

Houston George Bush Intcntl

Fri 2/20

7:34 pm-9:19 pm

Nonstop2h 45m

$135

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Sat 1/10

9:00 pm-12:31 am

Nonstop2h 31m

Houston George Bush Intcntl

Mon 1/12

6:45 am-8:27 am

Nonstop2h 42m

$146

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Wed 2/25

12:59 am-12:48 pm

1 stop10h 49m

Houston George Bush Intcntl

Sat 2/28

6:15 am-9:35 pm

1 stop16h 20m

$151

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Fri 2/13

10:30 pm-5:34 pm

2 stops18h 04m

Houston George Bush Intcntl

Mon 2/16

7:34 pm-9:19 pm

Nonstop2h 45m

$151

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Sat 1/24

7:20 pm-10:48 pm

Nonstop2h 28m

Houston George Bush Intcntl

Wed 1/28

7:13 am-8:55 am

Nonstop2h 42m

$157

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Fri 2/20

6:00 am-9:17 pm

1 stop14h 17m

Houston George Bush Intcntl

Sun 2/22

6:39 am-8:20 am

Nonstop2h 41m

$160

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Fri 1/9

6:00 am-9:30 am

Nonstop2h 30m

Houston George Bush Intcntl

Mon 1/12

2:08 pm-9:49 pm

1 stop8h 41m

$165

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Thu 1/8

6:00 am-9:30 am

Nonstop2h 30m

Houston George Bush Intcntl

Thu 1/15

11:01 am-12:45 pm

Nonstop2h 44m

$166

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Tue 1/6

6:45 pm-10:15 pm

Nonstop2h 30m

Houston George Bush Intcntl

Mon 1/12

6:45 am-8:27 am

Nonstop2h 42m

$173

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Wed 1/7

11:59 pm-10:01 am

1 stop9h 02m

Houston George Bush Intcntl

Thu 1/15

12:41 pm-8:08 pm

1 stop8h 27m

$185

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Showing 1-10 of 23 results
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Compare providers for flights from Denver to George Bush Intcntl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to George Bush Intcntl in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
CheapOairPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Denver-Houston George Bush Intcntl Airport flights, users find the pricing of Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on Denver-Houston George Bush Intcntl Airport flight deals on Cheapflights vs. Justfly.com >95% of the time. Price accuracy is based on data collected from Denver-Houston George Bush Intcntl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Houston George Bush Intcntl Airport flights, Cheapflights users trust Justfly.com the most. Justfly.com has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Houston George Bush Intcntl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Denver to George Bush Intcntl

Have a flexible travel schedule? Discover the best time to fly to George Bush Intcntl from Denver with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Denver to Houston George Bush Intcntl Airport

How far ahead should I book a flight from Denver to Houston George Bush Intcntl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Denver to George Bush Intcntl. Price data was last updated on December 19, 2025.

Booking 63 days in advance of your planned departure date is, on average, the best time to get cheap flights from Denver to Houston George Bush Intcntl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Denver to Houston George Bush Intcntl Airport?

Currently, October is the cheapest month in which you can book a flight from Denver to Houston George Bush Intcntl Airport (average of $51). Flying from Denver to Houston George Bush Intcntl Airport in August is currently the most expensive (average of $122). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DEN to IAH?

Find hourly flight availability from Denver to George Bush Intcntl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 26, 2025.

One of the essential ways to save on airfare from Denver to Houston George Bush Intcntl Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 65% on airfare.

What is the cheapest day to fly from Denver to Houston George Bush Intcntl Airport?

Use this chart to determine the cheapest time to fly round-trip from Denver to George Bush Intcntl. Price data was last updated on December 20, 2025.

Travelers seeking maximum savings on their Denver to Houston George Bush Intcntl Airport flight should consider departing on Thursday evenings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for Denver to Houston George Bush Intcntl Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Denver to Houston George Bush Intcntl Airport trip
Airlines
Frontier

Frontier offers extra comfort seats for a fee, enhancing comfort on short flights.


Early check-in can help secure your place onboard, avoiding overbooking issues.

Read more about FrontierBy Marisa Garcia
United Airlines

United's Economy Plus offers extra legroom, ideal for added comfort on short flights.


United's MileagePlus program allows pooling miles, beneficial for frequent flyers.

Read more about United AirlinesBy Harriet Baskas
Airports
DEN

For a quick check-in, use the DEN Reserve to schedule your security screening time online, avoiding long lines.

Read more about DENBy Emily Zemler
IAH

For a smooth arrival at IAH, consider taking an Uber or Lyft from Terminals A, B, or C for a quick ride to downtown Houston.

Read more about IAHBy Evie Carrick
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Evie Carrick

Evie Carrick

Expert on IAH

Evie Carrick

Evie Carrick

Evie Carrick is a writer and editor who has lived in five countries and traveled to over 50, with extensive experience flying around the world. She was born in Colorado, but has spent time flying to both coasts to visit family. She writes regularly for Travel + Leisure, BuzzFeed, and SKI and recently published seven travel journals with Simon & Schuster.

Read more
Emily Zemler

Emily Zemler

Expert on DEN

Emily Zemler

Emily Zemler

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more

Reviews of airlines servicing George Bush Intcntl

Get insights into the airlines that provide service to George Bush Intcntl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to George Bush Intcntl. Reviews last updated December 26, 2025.
Read through reviews of airlines operating flights from Denver to Houston George Bush Intcntl Airport, such as United Airlines and Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,116 reviews

Entertainment

7.1

Overall

7.4

Food

6.6

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,116 reviews
United Airlines
7.4
Good
9,116 reviews

Entertainment

7.1

Overall

7.4

Food

6.6

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
Frontier
5.8
Fair
3,071 reviews
United Airlines
7.4
Good
9,116 reviews

Entertainment

7.1

Overall

7.4

Food

6.6

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

Related info for your journey

Find useful and relevant information for your journey from Denver to George Bush Intcntl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Denver to Houston George Bush Intcntl?

    Located just 18.5 mi from the city center, Denver Intl is the airport most travelers will use when flying to Houston George Bush Intcntl from Denver. Booking flights from Denver Intl (DEN) to Houston George Bush Intcntl should be relatively easy as there are 36 daily outbound flights to Houston George Bush Intcntl from 2 different airlines.

  • How long is the flight from Denver to Houston George Bush Intcntl Airport?

    Frontier and United Airlines can get you from Denver to Houston George Bush Intcntl Airport in just under 2h 28m. Your travel time can differ by up to 17h 12m. The distance between Denver and Houston George Bush Intcntl Airport is about 861 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Denver to Houston George Bush Intcntl Airport round-trip?

    Frontier, at $62, was found to be the cheapest airline from Denver to Houston George Bush Intcntl Airport. An alternate airline flying to your destination would be United Airlines. Users have found that Frontier is 67% cheaper than the other options available to this destination.

  • What are the most reliable airlines from Denver to Houston George Bush Intcntl Airport?

    Before booking your flight to Houston George Bush Intcntl Airport from Denver, check out the most reliable airlines to get you to your destination on time: Volaris (93%), Avianca (88%), Air New Zealand( 79%).

  • What are the cheapest flights from Denver to Houston George Bush Intcntl Airport?

    Looking at all options, your cheapest flight can be booked for $39. While the most popular route (Denver Intl - Houston George Bush Intcntl) can be booked for $100 on average, our data indicates $850 when flying from Denver to Houston George Bush Intcntl Airport.

  • Can I find deals for flights from Denver to George Bush Intcntl that include hotel bookings?

    Yes. In addition to deals on Denver to George Bush Intcntl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to George Bush Intcntl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to George Bush Intcntl.

  • Can I find deals for business class flights from Denver to George Bush Intcntl?

    Yes. Cheapflights offers flight deals from Denver to George Bush Intcntl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Denver to Houston George Bush Intcntl Airport?

    Currently, October is the cheapest month in which you can book a flight from Denver to Houston George Bush Intcntl Airport (average of $51). Flying from Denver to Houston George Bush Intcntl Airport in August is currently the most expensive (average of $122). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Houston George Bush Intcntl Airport?

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

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Top 2 airlines flying from Denver to George Bush Intcntl

Discover the top 2 airlines that operate flights from Denver to George Bush Intcntl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$67Average$171FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$177Average$350FlexibilityNo cancel feeOn-time69%

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