HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Denver

$72+ Cheap flights from George Bush Intcntl (IAH) to Denver (DEN)

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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — DEN
Aug 7 — Aug 141
Fri 8/7
Fri 8/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from George Bush Intcntl to Denver with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Houston George Bush Intcntl to Denver Intl are usually found in September or August, booked 67 days in advance, depart on a Wednesday or Thursday and return on a Friday

Cheap flight deals from George Bush Intcntl to Denver

Cheapest flights from George Bush Intcntl to Denver
Explore the most affordable flight options available from George Bush Intcntl to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 8, 2026.

This Frontier deal was found by Cheapflights users on 7/3. 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 8/46:30 am
IAH
-
DEN
Nonstop2h 44m
Frontier
Fri 8/147:00 am
DEN
-
IAH
Nonstop2h 34m
Frontier
Deal found 7/3$145
This Kiwi.com deal was found by Cheapflights users on 7/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:30 am
IAH
-
DEN
Nonstop2h 44m
Frontier
Fri 7/319:06 pm
DEN
-
IAH
Nonstop2h 34m
Frontier
Deal found 7/5$146
This Frontier deal was found by Cheapflights users on 7/3. 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 7/286:14 pm
IAH
-
DEN
Nonstop2h 49m
Frontier
Mon 8/37:00 am
DEN
-
IAH
Nonstop2h 34m
Frontier
Deal found 7/3$147
This Kiwi.com deal was found by Cheapflights users on 7/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:50 am
IAH
-
DEN
Nonstop2h 41m
Frontier
Tue 9/228:44 pm
DEN
-
IAH
Nonstop2h 25m
Frontier
Deal found 7/3$148
This Frontier deal was found by Cheapflights users on 7/7. 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 7/2811:51 am
IAH
-
DEN
1 stop8h 55m
Frontier
Thu 8/69:06 pm
DEN
-
IAH
Nonstop2h 34m
Frontier
Deal found 7/7$149
This Frontier deal was found by Cheapflights users on 7/7. 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.
Sat 8/16:30 am
IAH
-
DEN
Nonstop2h 44m
Frontier
Mon 8/107:00 am
DEN
-
IAH
Nonstop2h 34m
Frontier
Deal found 7/7$151
This Kiwi.com deal was found by Cheapflights users on 7/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:14 pm
IAH
-
DEN
Nonstop2h 49m
Frontier
Thu 7/305:35 pm
DEN
-
IAH
Nonstop2h 39m
Frontier
Deal found 7/3$152
This Kiwi.com deal was found by Cheapflights users on 7/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:30 am
IAH
-
DEN
Nonstop2h 44m
Frontier
Sat 8/17:00 am
DEN
-
IAH
Nonstop2h 34m
Frontier
Deal found 7/3$154
This Kiwi.com deal was found by Cheapflights users on 7/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/76:00 am
IAH
-
DEN
2 stops10h 54m
Frontier
Tue 8/117:00 am
DEN
-
IAH
Nonstop2h 34m
Frontier
Deal found 7/7$155
This Kiwi.com deal was found by Cheapflights users on 7/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:14 pm
IAH
-
DEN
Nonstop2h 49m
Frontier
Wed 8/59:06 pm
DEN
-
IAH
Nonstop2h 34m
Frontier
Deal found 7/6$157

Find flight deals from George Bush Intcntl to Denver

Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) to Denver (DEN). 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 July 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$145
(Frontier)

One-way from

$72
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$224

Good round-trip deal

$246 or less

Good one-way deal

$168 or less
Provider with most accurate pricing for Houston George Bush Intcntl-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Houston George Bush Intcntl-Denver Intl flights.
Search Deals
From Houston George Bush Intcntl to Denver Intl
Search Deals
One-way flight from Houston George Bush Intcntl to Denver Intl
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Houston George Bush Intcntl to Denver Intl.
Search Deals
Price to beat on a one-way flight from Houston George Bush Intcntl to Denver Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from George Bush Intcntl to Denver 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 July 8, 2026.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Tue 12/1

8:20 pm-9:52 pm

Nonstop2h 32m

Denver Intl

Mon 12/7

7:25 pm-10:45 pm

Nonstop2h 20m

$253

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Wed 8/26

3:00 pm-4:45 pm

Nonstop2h 45m

Denver Intl

Mon 8/31

8:31 pm-11:56 pm

Nonstop2h 25m

$271

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Fri 11/20

10:45 am-3:56 pm

1 stop6h 11m

Denver Intl

Tue 11/24

12:59 am-8:46 am

1 stop6h 47m

$291

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Fri 1/1

6:30 am-12:05 pm

1 stop6h 35m

Denver Intl

Fri 1/8

10:45 am-5:40 pm

1 stop5h 55m

$291

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Mon 12/21

5:50 pm-10:59 pm

1 stop6h 09m

Denver Intl

Sat 12/26

6:05 am-3:00 pm

1 stop7h 55m

$291

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Sat 1/2

6:30 am-12:05 pm

1 stop6h 35m

Denver Intl

Sat 1/9

2:20 pm-10:48 pm

1 stop7h 28m

$291

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Tue 12/29

5:50 pm-10:59 pm

1 stop6h 09m

Denver Intl

Sun 1/3

12:59 am-8:46 am

1 stop6h 47m

$291

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Wed 7/29

6:30 am-12:05 pm

1 stop6h 35m

Denver Intl

Thu 8/6

12:50 am-8:37 am

1 stop6h 47m

$329

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Wed 7/29

5:40 pm-11:27 pm

1 stop6h 47m

Denver Intl

Fri 8/7

12:50 am-9:15 am

1 stop7h 25m

$329

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Fri 11/20

9:45 pm-11:23 pm

Nonstop2h 38m

Denver Intl

Wed 11/25

5:00 am-8:32 am

Nonstop2h 32m

$351

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/8

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Compare providers for flights from George Bush Intcntl to Denver

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 George Bush Intcntl to Denver in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
JustAirTicketPrice Accuracy-Trust Score*1 star
eDreamsPrice Accuracy2 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
Super.comPrice Accuracy-Trust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 Houston George Bush Intcntl Airport-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Houston George Bush Intcntl Airport-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Houston George Bush Intcntl Airport-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Houston George Bush Intcntl Airport-Denver flights, Cheapflights users trust FlightHub the most. FlightHub 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 Houston George Bush Intcntl Airport-Denver 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 George Bush Intcntl to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from George Bush Intcntl 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 Houston George Bush Intcntl Airport to Denver

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

Booking 66 days in advance of your planned departure date is, on average, the best time to get cheap flights from Houston George Bush Intcntl Airport to Denver. 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 Houston George Bush Intcntl Airport to Denver?

Currently, September is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Denver (average of $179). Flying from Houston George Bush Intcntl Airport to Denver in June is currently the most expensive (average of $336). 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 IAH to DEN?

Find hourly flight availability from George Bush Intcntl to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 8, 2026.

It’s typically best to fly out from Houston George Bush Intcntl Airport to Denver in the evening. Doing so could potentially save you 30% on the flight price compared to flying at noon, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from George Bush Intcntl to Denver. Price data was last updated on July 4, 2026.

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

How much does it cost to fly round-trip from Houston George Bush Intcntl Airport to Denver?

The best insider tips for Houston George Bush Intcntl Airport to Denver 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 Houston George Bush Intcntl Airport to Denver trip
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier

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 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 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 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 Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated July 8, 2026.
Get a feel of what it's like to fly with United Airlines,American Airlines, andFrontier from Houston George Bush Intcntl Airport to Denver by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,947 reviews

Overall

7.4

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
United Airlines
7.4
Good
9,947 reviews
United Airlines
7.4
Good
9,947 reviews

Overall

7.4

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
American Airlines
7.1
Good
11,784 reviews
United Airlines
7.4
Good
9,947 reviews

Overall

7.4

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
Frontier
5.6
Fair
2,836 reviews
United Airlines
7.4
Good
9,947 reviews

Overall

7.4

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

Related info for your journey

Find useful and relevant information for your journey from George Bush Intcntl to Denver. 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 into for flights to Denver from 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 Denver from Houston George Bush Intcntl. Booking flights from Houston George Bush Intcntl to Denver Intl (DEN) should be relatively easy as there are 39 daily inbound flights from Houston George Bush Intcntl from 3 different airlines.

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

    A quick flight from Houston George Bush Intcntl Airport to Denver can take about 2h 32m. United Airlines provides one of the quickest options available for as low as $253. There are 861 mi between Houston George Bush Intcntl Airport and Denver. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Our cheapest airline available from Houston George Bush Intcntl Airport to Denver is Frontier. Our recent data shows that you can find tickets from as low as $63 on this airline. Additional options worth looking into are United Airlines and American Airlines, starting at $177 and $216 round-trip. These flights start at 71% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Houston George Bush Intcntl Airport to Denver one-way?

    One-way options have recently been found by users for as low as $36 on Frontier. Other airlines that offer cheap prices include United Airlines from $90 and American Airlines from $121 one-way.

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

    No one likes to see their flight delayed. When booking a flight from Houston George Bush Intcntl Airport to Denver consider choosing Air Canada (83%), Air New Zealand (80%) or United Airlines (79%) as they are the most reliable in getting you off to your destination on time.

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

    Looking at all options, your cheapest flight can be booked for $86. While the most popular route (Houston George Bush Intcntl - Denver Intl) can be booked for $198 on average, our data indicates $580 when flying from Houston George Bush Intcntl Airport to Denver.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from George Bush Intcntl to Denver 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 Houston George Bush Intcntl Airport to Denver?

    Currently, September is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Denver (average of $179). Flying from Houston George Bush Intcntl Airport to Denver in June is currently the most expensive (average of $336). 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 Denver?

Book flights to Denver if you plan to visit one of these locations
Thornton
Black Hawk
Westminster
Centennial
Lakewood
Broomfield
Golden
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Central City
Fort Morgan
Cripple Creek
Winter Park
Manitou Springs
Frisco
Englewood
Glendale
Evergreen

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 3 airlines flying from George Bush Intcntl to Denver

Discover the top 3 airlines that operate flights from George Bush Intcntl to Denver. 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 July 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$63Average$172FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$177Average$364FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$216Average$366FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.