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George Bush Intcntl

$78+ 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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — IAH
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Houston George Bush Intcntl are usually found in February or October, booked 40 days in advance, depart on a Friday or Thursday and return on a Wednesday

Cheap 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 July 29, 2025.

Round-trip from

$124
(Frontier)

One-way from

$78
(FlightHub)

Popular in

May

Cheapest in

February

Average price

$173

Good round-trip deal

$160 or less

Good one-way deal

$119 or less
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. 15% potential increase in price ($34 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in July 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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Find 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 July 29, 2025.

This Frontier deal was found by Cheapflights users on 7/28. 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 8/237:00 amDEN - IAH
Nonstop2h 39mFrontier
Tue 8/267:30 amIAH - DEN
Nonstop2h 42mFrontier
Deal found 7/28$124
This United Airlines deal was found by Cheapflights users on 7/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/287:31 pmDEN - IAH
Nonstop2h 26mUnited Airlines
Tue 11/44:20 pmIAH - DEN
Nonstop2h 36mUnited Airlines
Deal found 7/28$157
This American Airlines deal was found by Cheapflights users on 7/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/62:00 pmDEN - IAH
1 stop6h 23mAmerican Airlines
Sat 9/277:42 amIAH - DEN
1 stop7h 15mAmerican Airlines
Deal found 7/27$187

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 July 29, 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

Sat 8/23

7:00 am-10:39 am

Nonstop2h 39m

Houston George Bush Intcntl

Tue 8/26

7:30 am-9:12 am

Nonstop2h 42m

$124

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Tue 10/28

7:31 pm-10:57 pm

Nonstop2h 26m

Houston George Bush Intcntl

Tue 11/4

4:20 pm-5:56 pm

Nonstop2h 36m

$157

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Sat 9/6

2:00 pm-9:23 pm

1 stop6h 23m

Houston George Bush Intcntl

Sat 9/27

7:42 am-1:57 pm

1 stop7h 15m

$187

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Sun 8/24

7:00 am-10:39 am

Nonstop2h 39m

$78

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Tue 9/2

8:31 pm-11:55 pm

Nonstop2h 24m

$79

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Wed 9/10

2:47 pm-10:32 pm

1 stop6h 45m

$94

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Thu 9/11

12:59 am-8:43 am

1 stop6h 44m

$109

DenverHouston

DEN - IAH

DENIAH

Denver Intl

Fri 8/29

6:07 pm-4:22 pm

2 stops21h 15m

$158

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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

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 July 25, 2025.

Booking 40 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, August is the cheapest month in which you can book a flight from Denver to Houston George Bush Intcntl Airport (average of $241). Flying from Denver to Houston George Bush Intcntl Airport in March is currently the most expensive (average of $339). 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 July 29, 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 70% 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 July 27, 2025.

Travelers seeking maximum savings on their Denver to Houston George Bush Intcntl Airport flight should consider departing on Wednesday evenings 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.

Weekly flight availability from Denver to Houston George Bush Intcntl Airport

Explore weekly flight availability from Denver to George Bush Intcntl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 29, 2025.

The most flights from DEN to IAH are scheduled on a Sunday (40 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (25 on average).

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 July 29, 2025.
Read through reviews of airlines operating flights from Denver to Houston George Bush Intcntl Airport, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,979 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,979 reviews
Delta
8.0
Very good
7,979 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,979 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,979 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Frontier
5.9
Fair
3,238 reviews
Delta
8.0
Very good
7,979 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 35 daily outbound flights to Houston George Bush Intcntl from 2 different airlines.

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

    Frontier, at $124, was found to be the cheapest airline from Denver to Houston George Bush Intcntl Airport.Alternate airlines to your destination round-trip include United Airlines and American Airlines. Users have found that Frontier is 31% cheaper than the other options available to this destination.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $78. Users have also found prices from $79 and $94 on United Airlines and American Airlines, respectively.

  • 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: Avianca (84%), Frontier (70%), Air Canada( 60%).

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

    Looking at all options, your cheapest flight can be booked for $77. While the most popular route (Denver Intl - Houston George Bush Intcntl) can be booked for $138 on average our data indicates $1,897 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, August is the cheapest month in which you can book a flight from Denver to Houston George Bush Intcntl Airport (average of $241). Flying from Denver to Houston George Bush Intcntl Airport in March is currently the most expensive (average of $339). 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
Montgomery
Spring
Humble
Conroe
The Woodlands
Tomball
Katy
Jersey Village

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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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$60Average$155FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$158Average$344FlexibilityNo cancel feeOn-time69%

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