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$58+ 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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — DEN
Aug 26 — Sep 21
Tue 8/26
Tue 9/2
1 adult, Economy
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Cheapflights Tip: The best prices from Houston George Bush Intcntl to Denver Intl are usually found in January or October, booked 90 days in advance, depart on a Wednesday or Tuesday and return on a Friday

Cheap 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 August 21, 2025.

Round-trip from

$107
(Cheapflightsfares)

One-way from

$58
(Cheapflightsfares)

Popular in

December

Cheapest in

January

Average price

$175

Good round-trip deal

$144 or less

Good one-way deal

$119 or less
From Houston George Bush Intcntl to Denver Intl
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One-way flight from Houston George Bush Intcntl to Denver Intl
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Highest demand for flights based on searches. 3% potential increase in price ($6 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 August 2025
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Price to beat on a round-trip flight from Houston George Bush Intcntl to Denver Intl.
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Price to beat on a one-way flight from Houston George Bush Intcntl to Denver Intl.
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Find 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 August 21, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 8/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/229:08 pmIAH - DEN
Nonstop2h 45mFrontier
Sat 9/275:45 pmDEN - IAH
Nonstop2h 29mFrontier
Deal found 8/20$107
This Priceline deal was found by Cheapflights users on 8/19. 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.
Sat 9/139:08 pmIAH - DEN
Nonstop2h 45mFrontier
Mon 9/157:40 amDEN - IAH
Nonstop2h 29mFrontier
Deal found 8/19$108
This FlightHub deal was found by Cheapflights users on 8/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/207:20 amIAH - DEN
Nonstop2h 41mFrontier
Wed 9/245:45 pmDEN - IAH
Nonstop2h 29mFrontier
Deal found 8/19$109
This Cheapflightsfares deal was found by Cheapflights users on 8/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/116:15 amIAH - DEN
Nonstop2h 40mFrontier
Sun 9/147:40 amDEN - IAH
Nonstop2h 29mFrontier
Deal found 8/21$110
This Priceline deal was found by Cheapflights users on 8/20. 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.
Wed 9/107:30 amIAH - DEN
Nonstop2h 41mFrontier
Sat 9/137:40 amDEN - IAH
Nonstop2h 29mFrontier
Deal found 8/20$111
This CheapOair deal was found by Cheapflights users on 8/19. 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.
Fri 9/1212:32 pmIAH - DEN
1 stop11h 44mFrontier
Tue 9/165:45 pmDEN - IAH
Nonstop2h 29mFrontier
Deal found 8/19$112
This Mytrip deal was found by Cheapflights users on 8/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/37:30 amIAH - DEN
Nonstop2h 42mFrontier
Wed 9/1710:29 pmDEN - IAH
1 stop16h 38mFrontier
Deal found 8/19$114
This Cheapflightsfares deal was found by Cheapflights users on 8/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/63:11 pmIAH - DEN
1 stop5h 52mFrontier
Mon 9/228:15 pmDEN - IAH
Nonstop2h 24mFrontier
Deal found 8/18$115
This Cheapflightsfares deal was found by Cheapflights users on 8/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:15 amIAH - DEN
Nonstop2h 40mFrontier
Sat 9/135:45 pmDEN - IAH
Nonstop2h 29mFrontier
Deal found 8/19$116
This Priceline deal was found by Cheapflights users on 8/21. 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.
Fri 9/1912:52 pmIAH - DEN
1 stop9h 20mFrontier
Mon 9/228:15 pmDEN - IAH
Nonstop2h 24mFrontier
Deal found 8/21$117
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Thu 9/189:08 pmIAH - DEN
Nonstop2h 45mFrontier
Thu 9/258:15 pmDEN - IAH
Nonstop2h 24mFrontier
Deal found 8/21$118

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 August 21, 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Denver that are best for you.

Fly from

George Bush Intcntl

Fly to

Denver

Route

Depart

Return

Price

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Thu 9/4

9:08 pm-10:53 pm

Nonstop2h 45m

Denver Intl

Fri 9/12

12:04 am-3:36 pm

1 stop14h 32m

$108

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Mon 10/6

6:15 am-7:55 am

Nonstop2h 40m

Denver Intl

Mon 10/6

12:36 am-10:47 am

1 stop9h 11m

$108

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Tue 9/9

7:30 am-9:11 am

Nonstop2h 41m

Denver Intl

Sat 9/13

5:45 pm-9:14 pm

Nonstop2h 29m

$112

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Fri 9/19

9:08 pm-10:53 pm

Nonstop2h 45m

Denver Intl

Sat 9/20

7:40 am-11:09 am

Nonstop2h 29m

$113

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Tue 9/16

7:30 am-9:11 am

Nonstop2h 41m

Denver Intl

Mon 9/22

12:04 am-3:36 pm

1 stop14h 32m

$115

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Fri 9/26

9:08 pm-10:53 pm

Nonstop2h 45m

Denver Intl

Wed 10/1

5:45 pm-9:14 pm

Nonstop2h 29m

$116

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Fri 9/12

12:32 pm-9:12 pm

1 stop9h 40m

Denver Intl

Sun 9/14

7:40 am-11:09 am

Nonstop2h 29m

$117

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Fri 10/17

6:00 am-7:36 am

Nonstop2h 36m

Denver Intl

Mon 10/20

1:42 pm-10:03 pm

1 stop7h 21m

$117

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Thu 9/4

12:32 pm-9:12 pm

1 stop9h 40m

Denver Intl

Fri 9/5

8:15 pm-11:39 pm

Nonstop2h 24m

$117

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Fri 11/14

8:47 pm-10:28 pm

Nonstop2h 41m

Denver Intl

Sun 11/16

1:42 pm-10:03 pm

1 stop7h 21m

$117

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/21

Showing 1-10 of 23 results
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The best insider tips for Houston George Bush Intcntl Airport to Denver flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston George Bush Intcntl Airport to Denver trip
Airlines
Frontier

Frontier's UpFront Plus guarantees an empty middle seat for added comfort.


Frontier offers Zone 1 boarding with a carry-on bag purchase or special fare bundle.

Read more about Frontierby Marisa Garcia
United Airlines

Basic Economy on United allows no carry-on bags, only a personal item.


United Economy Plus offers extra legroom seats at the front of the economy cabin.

Read more about United Airlinesby Harriet Baskas
Airports
IAH

Check security wait times on the IAH website to plan your arrival and avoid delays.

Read more about IAHby Evie Carrick
DEN

Use the A Line train for a quick 37-minute ride from DEN to downtown Denver.

Read more about DENby Emily Zemler
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

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?

Use this chart to determine the optimal time to book a round-trip flight from George Bush Intcntl to Denver. Price data was last updated on August 8, 2025.

Booking 90 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, October is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Denver (average of $197). Flying from Houston George Bush Intcntl Airport to Denver in March is currently the most expensive (average of $278). 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 August 21, 2025.

It’s typically best to fly out from Houston George Bush Intcntl Airport to Denver at noon. Doing so could potentially save you 52% on the flight price compared to flying in the afternoon, 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 August 17, 2025.

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

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 August 21, 2025.
Get a feel of what it's like to fly with United Airlines, American Airlines, and Frontier 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
8,930 reviews

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Mignon,Nov 2024

IAH - LGA

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.
United Airlines
7.4
Good
8,930 reviews
United Airlines
7.4
Good
8,930 reviews

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Mignon,Nov 2024

IAH - LGA

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,930 reviews

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Mignon,Nov 2024

IAH - LGA

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.
Frontier
5.8
Fair
3,207 reviews
United Airlines
7.4
Good
8,930 reviews

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Mignon,Nov 2024

IAH - LGA

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

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 36 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 45m. Frontier provides one of the quickest options available for as low as $108. There are 861 mi between Houston George Bush Intcntl Airport and Denver. Most flights are nonstop.

  • 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 $57 on this airline. Additional options worth looking into are United Airlines and American Airlines, starting at $157 and $247 round-trip. These flights start at 68% lower than the current average price 3 months from now.

  • 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 Frontier (80%), United Airlines (75%) or Air Canada (74%) 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 $80. While the most popular route (Houston George Bush Intcntl - Denver Intl) can be booked for $119 on average our data indicates $186 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, October is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Denver (average of $197). Flying from Houston George Bush Intcntl Airport to Denver in March is currently the most expensive (average of $278). 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
Westminster
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Greeley
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Cripple Creek
Thornton
Broomfield
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Frisco
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Idaho Springs

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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 August 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$57Average$158FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$157Average$318FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$247Average$376FlexibilityNo cancel feeOn-time71%

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