DEN - IAH

$77 Find Cheap Flights from Denver to Houston George Bush Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to George Bush Intcntl departing on 9/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Houston George Bush Intcntl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Houston, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Houston, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Expert advice
Booking Insights
Flight Deals

Cheap Flights from Denver to George Bush Intcntl (DEN-IAH)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to George Bush Intcntl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to George Bush Intcntl

Fri, Oct 10 - Sun, Oct 12
Frontier Logo
7:15 am - 10:44 amDEN-IAH
2h 29mnonstop
Frontier Logo
6:00 am - 7:36 amIAH-DEN
2h 36mnonstop
$116Frontier
Find Deal
Wed, Sep 3 - Thu, Sep 11
Frontier Logo
5:00 pm - 8:42 pmDEN-IAH
2h 42mnonstop
Frontier Logo
12:32 pm - 11:16 pmIAH-DEN
11h 44m1 stop
$117Frontier
Find Deal
Thu, Sep 11 - Sun, Sep 14
Frontier Logo
8:15 pm - 11:39 pmDEN-IAH
2h 24mnonstop
Frontier Logo
2:34 pm - 7:20 amIAH-DEN
17h 46m1 stop
$118Frontier
Find Deal
Sat, Nov 1 - Sun, Nov 2
Frontier Logo
8:13 pm - 11:39 pmDEN-IAH
2h 26mnonstop
Frontier Logo
5:00 am - 6:36 amIAH-DEN
2h 36mnonstop
$119Frontier
Find Deal
Fri, Sep 5 - Thu, Sep 11
Frontier Logo
7:40 am - 11:09 amDEN-IAH
2h 29mnonstop
Frontier Logo
9:08 pm - 10:53 pmIAH-DEN
2h 45mnonstop
$120Frontier
Find Deal
Fri, Oct 3 - Sat, Oct 4
Frontier Logo
1:12 pm - 9:53 pmDEN-IAH
7h 41m1 stop
Frontier Logo
7:20 am - 9:01 amIAH-DEN
2h 41mnonstop
$121Frontier
Find Deal
Sun, Sep 7 - Sat, Sep 13
Frontier Logo
7:40 am - 11:09 amDEN-IAH
2h 29mnonstop
Frontier Logo
9:08 pm - 10:53 pmIAH-DEN
2h 45mnonstop
$122Frontier
Find Deal
Fri, Sep 5 - Sat, Sep 6
Frontier Logo
7:40 am - 11:09 amDEN-IAH
2h 29mnonstop
Frontier Logo
10:54 am - 8:30 amIAH-DEN
22h 36m1 stop
$123Frontier
Find Deal
Fri, Oct 10 - Tue, Oct 14
Frontier Logo
8:58 pm - 12:52 pmDEN-IAH
14h 54m1 stop
Frontier Logo
6:00 am - 7:36 amIAH-DEN
2h 36mnonstop
$124Frontier
Find Deal
Fri, Sep 5 - Thu, Sep 11
Frontier Logo
8:15 pm - 11:39 pmDEN-IAH
2h 24mnonstop
Frontier Logo
12:32 pm - 9:12 pmIAH-DEN
9h 40m1 stop
$125Frontier
Find Deal
Expert advice

Expert advice for your flight from Denver to George Bush Intcntl

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-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.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Frontier

Frontier's Economy Bundle includes a carry-on and standard seat choice, ideal for budget travelers.


Avoid Airport Agent Assistance fees by checking in online or at a kiosk for free.

Read more about Frontierby Stefanie Waldek
United Airlines

United's Economy Plus offers up to 6 inches more legroom than standard economy seats.


United's Priority Boarding puts you in Zone 2, avoiding gate-checking your carry-on.

Airports
DEN

Use the West Security Checkpoint at DEN for faster screening; it allows liquids and laptops to stay in bags.

Read more about DENby Harriet Baskas
IAH

For rideshare pickups at IAH, head to Terminals A or C if arriving internationally, as Terminal E lacks a pickup area.

Read more about IAHby John Walton
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Frontier and United Airlines

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
John Walton

John Walton

Expert on IAH

John Walton

John Walton

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Read more
Harriet Baskas

Harriet Baskas

Expert on DEN

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
Booking Insights

KAYAK's insights & trends for Denver to George Bush Intcntl flights

Get data-powered insights and trends into flights from Denver to George Bush Intcntl to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Denver to Houston George Bush Airport?

The average price of all round-trip flights from Denver to Houston George Bush Intcntl Airport clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Houston George Bush Airport on a Friday and more expensive on a Sunday. On your return trip to Denver, you should consider flying back on a Wednesday, and avoid Sundays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Houston George Bush Intcntl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Denver to Houston George Bush Intcntl Airport is February, where tickets cost $133 (return) on average. On the other hand, the most expensive months are May and March, where the average cost of round-trip tickets is $257 and $228 respectively.

Can I save money by flying with a layover from Denver to Houston George Bush Intcntl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $373 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Houston George Bush Intcntl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Denver to Houston George Bush Intcntl Airport, you should book around 2 weeks before departure, which saves you about 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$77
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly and prices are also 27% lower on average.
Flight from Denver to Houston George Bush Airport

When to book flights from Denver to George Bush Intcntl

Are your dates flexible? Find out the best times to travel from Denver to George Bush Intcntl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Denver to Houston George Bush Airport flights

  • Are there spas at George Bush Intercontinental Airport (IAH)?

    Those arriving in IAH while fatigued can find various spas at this property that offer therapy before ideal for relaxation and self-indulgence. One of the most frequented amenities here is the XpreSpa where you can pop in for some deep tissue massage, facials, pedicures, and manicures. It’s situated in Terminal A.

  • Which airline allows pets on in the cabin?

    Passengers aboard British Airways should bear in mind that the carrier allows you to board with your furry friends on the trip from DEN to IAH. Note that your four-legged family members must bear valid health certificates. You should also retrain the pet in their kernels throughout the flight.

  • Are there car rentals at George Bush Intercontinental Airport (IAH)?

    Visitors arriving at IAH and want to explore the city in a car will find numerous car agencies running their counters at this establishment, including Avis and Enterprise Rent-A-Car. After the baggage claim area, proceed through the exit where a shuttle will ferry you to the car rental facility.

  • Are there any services for passengers with limited mobility at the IAH upon their arrival?

    IAH is committed to catering to the needs of travelers with disabilities or persons with mobility limitations. The ground subway between the terminals is wheelchair-accessible, and there’s a program on Aira Services for BLV (Blind and Low Vision).

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

    In the last 3 days, the lowest price for a flight from Denver to Houston George Bush Intcntl Airport was $77 for a one-way ticket and $116 for a round-trip.

  • Do I need a passport to fly between Denver and Houston George Bush Airport?

    No

  • Which airports will I be using when flying from Denver to Houston George Bush Airport?

    When flying out of Denver you will be using Denver Intl. You will be landing at Houston George Bush Airport, also known as Houston George Bush Intcntl.

  • Which airlines offer Wi-Fi service onboard planes from Denver to Houston George Bush Airport?

    Delta, American Airlines, and Alaska Airlines offer inflight Wi-Fi service on the Denver to Houston George Bush Airport flight route.

  • Which aircraft models fly most regularly from Denver to Houston George Bush Airport?

    The Airbus A321neo is the aircraft model that flies most regularly on the Denver to Houston George Bush Airport flight route.

  • Which airline alliances offer flights from Denver to Houston George Bush Airport?

    Star Alliance is the only airline alliance operating flights between Denver and Houston George Bush Airport.

  • On which days can I fly direct from Denver to Houston George Bush Airport?

    There are nonstop flights from Denver to Houston George Bush Airport on a daily basis.

  • Which is the best airline for flights from Denver to Houston, United Airlines or Frontier?

    The two airlines most popular with KAYAK users for flights from Denver to Houston are United Airlines and Frontier. With an average price for the route of $347 and an overall rating of 7.4, United Airlines is the most popular choice. Frontier is also a great choice for the route, with an average price of $158 and an overall rating of 5.8.

  • How does KAYAK find such low prices on flights from Denver to Houston George Bush Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Houston George Bush Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Houston George Bush Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Houston George Bush Airport from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Houston George Bush Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Houston George Bush Airport with an airline and back to Denver with another airline. Booking your flights between Denver and IAH can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Houston George Bush Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Houston George Bush Airport from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Denver to Houston George Bush Intcntl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $153 or less one-way and $181 or less round-trip.
  • Travelers planning to leave for Houston with early morning flights via Denver International Airport (DEN) should consider sleeping in any of the multiple hotels around this facility. The Westin Denver International Airport and Staybridge Suites Denver International Airport are two such hotels, and they provide courtesy shuttles to and from the airport, ensuring that you’re at the terminal in time for your flight.
  • Denver International Airport (DEN) has one terminal; the Jeppesen Terminal, complemented by three Concourses, A, B, and C. Each terminal features check-in facilities, immigration, customs, and security checkpoints. Check with your airline on which concourse you’ll be departing through. Meanwhile, Automated Guideway Transit System provides quick linkage from the terminal to the concourses, and it departs every 5-15min.
  • Families using Denver International Airport (DEN) will be glad to know that the property caters to the needs of moms and their young ones. The facility features suites where lactating and nursing mothers can breastfeed or pump in privacy. These amenities are situated after security in every concourse. Also, the rooms have sinks, seats, and power sockets.
  • Suppose you want to say a prayer before your voyage from Denver to Houston. In that case, you’ll be happy to know that airport features a suite where you can have a private session with the almighty. This sacred sanctuary is located in Jeppesen Terminal, Level 6 East, and is open between 4 am to midnight, every day. The room constitutes an Islamic Masjid and an inter-faith chapel.
  • In case you want to leave your car behind at DEN before flying out to Houston George Bush Intercontinental Airport (IAH), you’ll have various parking options at your disposal. The parking is categorized into garage, economy, short-term, and long-term lots. Economy parking is on the eastern end of the Jeppesen Terminal, and you get there via a free shuttle that departs from the terminal every 10min.

Prefer to fly direct from Denver to Houston George Bush Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Denver Intl to Houston George Bush Intcntl.
Find which airlines fly direct from Denver Intl Airport to Houston George Bush Intcntl Airport, which days they fly and book direct flights.

Direct departures

Denver Intl to Houston George Bush Intcntl

Monday

Air Canada, Air New Zealand, Avianca, +3 more

Air Canada, Air New Zealand, +4 more

Tuesday

Air Canada, Air New Zealand, Avianca, +3 more

Air Canada, Air New Zealand, +4 more

Wednesday

Air Canada, Air New Zealand, Avianca, +3 more

Air Canada, Air New Zealand, +4 more

Thursday

Air Canada, Air New Zealand, Avianca, +3 more

Air Canada, Air New Zealand, +4 more

Friday

Air Canada, Air New Zealand, Avianca, +3 more

Air Canada, Air New Zealand, +4 more

Saturday

Air Canada, Air New Zealand, Avianca, +3 more

Air Canada, Air New Zealand, +4 more

Sunday

Air Canada, Air New Zealand, Avianca, +3 more

Air Canada, Air New Zealand, +4 more

See more direct flights

Direct returns

Houston George Bush Intcntl to Denver Intl

Monday

Air Canada, Air New Zealand, Avianca, +3 more

Air Canada, Air New Zealand, +4 more

Tuesday

Air Canada, Air New Zealand, Avianca, +3 more

Air Canada, Air New Zealand, +4 more

Wednesday

Air Canada, Air New Zealand, Avianca, +3 more

Air Canada, Air New Zealand, +4 more

Thursday

Air Canada, Air New Zealand, Avianca, +3 more

Air Canada, Air New Zealand, +4 more

Friday

Air Canada, Air New Zealand, Avianca, +3 more

Air Canada, Air New Zealand, +4 more

Saturday

Air Canada, Air New Zealand, Avianca, +3 more

Air Canada, Air New Zealand, +4 more

Sunday

Air Canada, Air New Zealand, Avianca, +3 more

Air Canada, Air New Zealand, +4 more

See more direct flights

Reviews of the top airlines flying from Denver to George Bush Intcntl

 
See real verified KAYAK customer reviews for airlines flying from Denver to Houston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to George Bush Intcntl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8945 reviews
7.7Boarding
6.6Food
8.1Crew
7.1Entertainment
7.3Comfort
Airline reviews

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

4.0 OkayGeorge, Aug 2025HNL - IAH
Read more United Airlines reviews

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

I flew with my dog and had already purchased my dog’s ticket. Even that morning I had called costumer service to insure that my husband and I had seats together since the website was giving me an error when choosing our seats and the representative mentioned our dog. I showed up early to the airport and when I got to the gate and we started boarding I was help back and told that I was supposed to have a yellow tag and that I should have checked in at the counter for them to give me that tag. I was not aware of this, the representative on the phone did not say anything. Nor did I see it anywhere in the checking process online, so if you travel with a pet and are not checking in luggage, just know that you still have to go to the check in counter when arriving at the airport unless you want to be the last one to board and not have room for your carry on in the overhead bins. Other than that, I had a great experience.

This flight was perfect. No complaints and only the highest regard for the crew and ground staff and how they executed perfectly. I fly a lot with United and would request predictability and transparency in their operations instead of last minute changes.

This is for UA2274 from Houston to Sacramento. The flight was delayed arriving due to mechanical issues so we left about 3 hours later than scheduled. When boarding the plane the temperature inside was excessive - likely close to 100. Pilot apologized and said it was going to improve at altitude, which it did. But before that I honestly thought there might have been more delays removing passengers made ill from the heat. We were delayed leaving due to another mechanical issue. There was not water on the plane due to a panel that was not secured. They did that quickly, but the combination of mechanical issues was rather disturbing and did not reflect well on United.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

The woman gate agent in Phoenix was none too sympathetic about my check-in process as I am relatively new with using apps. I almost did not get on because she said I did not check-in. I thought I had via Kayak where I purchased a very expensive ticket. Lesson learned but to be told I may not get on as a matter of factly was difficult to hear.

Gate agent did not hold flight for connection, provided no assistance to get new flight

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

I don’t understand the purpose of the orange “priority” tag on my bag. This tagged, my bag is last or near to the last bag to come down the carousel at IAH.

What I expected, nickeled and dined and a frontier flight attendant loudly complained about her job and lack of communication as she headed to the gate on her cell phone. Not professional.

My flight was canceled I was promised a reginf still not received.

I’m not gonna fly Frontier Airlines because booking is not an option. No water or food is for high price, not equipped for health emergency incompetent crew for emergency services. Cheap airline shows it is cheaper in all service categories. Boarding is the best of all airlines!

Very bad! No good service delayed my second connection flight

Frontier is terrible. Paid for exit row, not given exit row, refused to refund fee.

2 hour delay due to late plane, wrong size plane causing overbooking, and people getting off and on the plane after boarding was completed.

The worst. We never made our connection and they did absolutely nothing to help us at the airport.

I never got to experience the flight because they delayed my first flight and I missed this one. Then Frontier didn't want to help me rebook a flight to get me to my final destination.

The Boarding process in Denver was chaotic, and since the line was so long, we were lined up very far from the gate. If there were any announcements from the gate staff, we didn't hear them. The flight attendants were spectacular. The only negative part of the flight was sitting by a 2 1/2 year old who was unruly and unfortunately had parents that matched his behaviors. Also, the restaurants in Denver on the E concourse, they didn't have food (passengers could only order 1 item on the entire menu) or the restaurants had 12-14 people waiting for orders to be prepared and another 6 people waiting to order. If you have a layover in Denver and need to grab food, be prepared to visit the shops with pre-packaged sandwiches, or you can visit another concourse but it may take a while to transit throughout the airport.

Everything went as planned. Crew was great. Seats were still not that comfortable.

Everything you need to know for your flight from Denver to George Bush Intcntl

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.