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CA $138 Cheap Flights from Denver (DEN) to Houston (IAH)

View CA $138 flight on Sun, Sep 6, 2026Opens in a new window

Popular airlines from Denver International Airport (DEN) to George Bush Intercontinental Airport (IAH)

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Cheap flights from Denver (DEN) to Houston (IAH)

Prices were available within the past 7 days and start at CA $138 for one-way flights and CA $278 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Aug 20 - Mon, Aug 24
DEN
Denver
IAH
Houston
CA $278 Roundtrip, found 5 days ago
CA $278
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Aug 20 from Denver to Houston, returning Mon, Aug 24, priced at CA $278 found 5 days ago
Delta
Sat, Sep 5 - Mon, Sep 7
DEN
Denver
IAH
Houston
CA $301 Roundtrip, found 1 hour ago
CA $301
Roundtrip
found 1 hour ago
Select Delta flight, departing Sat, Sep 5 from Denver to Houston, returning Mon, Sep 7, priced at CA $301 found 1 hour ago
American Airlines
Fri, Sep 11 - Sat, Sep 12
DEN
Denver
IAH
Houston
CA $303 Roundtrip, found 3 days ago
CA $303
Roundtrip
found 3 days ago
Select American Airlines flight, departing Fri, Sep 11 from Denver to Houston, returning Sat, Sep 12, priced at CA $303 found 3 days ago
Delta
Thu, Aug 20 - Mon, Aug 24
DEN
Denver
IAH
Houston
CA $321 Roundtrip, found 5 days ago
CA $321
Roundtrip
found 5 days ago
Select Delta flight, departing Thu, Aug 20 from Denver to Houston, returning Mon, Aug 24, priced at CA $321 found 5 days ago
American Airlines
Sat, Sep 5 - Mon, Sep 7
DEN
Denver
IAH
Houston
CA $326 Roundtrip, found 1 hour ago
CA $326
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Sat, Sep 5 from Denver to Houston, returning Mon, Sep 7, priced at CA $326 found 1 hour ago
Delta
Sat, Nov 7 - Wed, Nov 11
DEN
Denver
IAH
Houston
CA $327 Roundtrip, found 2 days ago
CA $327
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Nov 7 from Denver to Houston, returning Wed, Nov 11, priced at CA $327 found 2 days ago
American Airlines
Sat, Sep 5 - Mon, Sep 7
DEN
Denver
IAH
Houston
CA $344 Roundtrip, found 1 hour ago
CA $344
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Sat, Sep 5 from Denver to Houston, returning Mon, Sep 7, priced at CA $344 found 1 hour ago
United
Fri, Sep 11 - Sat, Sep 12
DEN
Denver
IAH
Houston
CA $388 Roundtrip, found 3 days ago
CA $388
Roundtrip
found 3 days ago
Select United flight, departing Fri, Sep 11 from Denver to Houston, returning Sat, Sep 12, priced at CA $388 found 3 days ago
JetBlue Airways
Tue, Aug 25 - Fri, Aug 28
DEN
Denver
IAH
Houston
CA $757 Roundtrip, found 18 hours ago
CA $757
Roundtrip
found 18 hours ago
Select JetBlue Airways flight, departing Tue, Aug 25 from Denver to Houston, returning Fri, Aug 28, priced at CA $757 found 18 hours ago
Alaska Airlines
Tue, Aug 25 - Fri, Aug 28
DEN
Denver
IAH
Houston
CA $886 Roundtrip, found 18 hours ago
CA $886
Roundtrip
found 18 hours ago
Select Alaska Airlines flight, departing Tue, Aug 25 from Denver to Houston, returning Fri, Aug 28, priced at CA $886 found 18 hours ago

Alternative airports near Houston

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to George Bush Intercontinental IAH. Cheapest option available. Average driving time to city centre is 24 minutes. Flights from CA $456
IAH
George Bush Intercontinental
Cheapest
Average driving time to city centre24 min
Flights from CA $456

Find the cheapest month to fly from Denver (DEN) to Houston (IAH)

September is typically the cheapest month to fly

From CA $87 - CA $199 per traveller.

Frequently asked questions

How much does a flight from Denver, CO (DEN) to Houston, TX (IAH) cost?
You can find one-way and return flights from Denver, CO (DEN) to Houston, TX (IAH) with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when DEN to IAH ticket fares go up or down.
What is the cheapest month to fly from Denver, CO (DEN) to Houston, TX (IAH)?
The cheapest months to fly from Denver, CO (DEN) to Houston, TX (IAH) are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental)?
There are 2 airlines that offer direct flights from Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental):
  • United operates 98 direct flights from Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental) every week.
  • Frontier Airlines operates 19 direct flights from Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental) every week.
What is the cheapest airline that flies from Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental)?
Frontier Airlines is one of the cheapest airlines offering nonstop return flights from Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental), with tickets starting from around CA$63 for flights that can be booked for departure within the next year. Key Lime DBA Denver Air Connection offers one of the cheapest connecting return flights with a layover in Clovis Municipal (CVN), starting from around CA$518. These prices are per adult, for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental)?
To find a cheap flight from Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental)?
The best airline to fly with from Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, Frontier Airlines typically offers the lowest fares. Alaska Airlines offers the most daily flights from Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Denver, CO (DEN) to Houston, TX (IAH)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental)?
You'll find approximately 17 nonstop flights per day from Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental). For even more choices, look at flights that include layovers, as there are around 101 connecting flights per day. Some common connection points include Seattle - Tacoma Intl. (SEA), Dallas-Fort Worth Intl. (DFW), and Portland Intl. (PDX).
What is the earliest flight from Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental)?
The earliest flight from Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental) typically departs at around 12:00 AM local time, operated by Frontier Airlines. This is a seasonal service active in June, July, October, and November. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental)?
You'll find the most flights from Denver International Airport (DEN) to George Bush Intercontinental (IAH) on Fridays, with around 81 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United, American Airlines, and Delta. Flight schedules are quite consistent throughout the week, so you'll have a good selection of flights regardless of the day you choose to fly.
What are the most popular departure times for flights from Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental)?
The most popular departure times for flights from Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental) are in the morning, from 6am to 9am. Many major carriers, including Frontier Airlines, American Airlines and United, offer flights during this window. Many travellers prefer these early morning flights because they allow you to arrive at your destination with plenty of time to start your day.
How long does it take to fly from Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental)?
When flying from Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental), you'll find that a nonstop flight typically takes around 2 hours 30 minutes. This route covers a distance of approximately 1,386 kilometers. If you opt for a one-stop flight, your travel time will be longer, usually around 8 hours. Flights with two or more stops take even longer, averaging about 10 hours 30 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your journey.
Can you fly business or first class from Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental)?
You can fly business class or first class between DEN and IAH. Airlines that offer business class service on this route include:
  • Frontier Airlines
  • Delta
First class cabins are available on:
  • Alaska Airlines
  • United
  • Delta
  • American Airlines
How do I earn miles on a Denver, CO (DEN) to Houston, TX (IAH) flight with Expedia?
It's easy to earn miles on a Denver, CO (DEN) to Houston, TX (IAH) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Houston, TX (IAH) from Denver, CO (DEN)?
If you're planning to travel to Houston from Denver Intl. (DEN), you can fly directly into George Bush Intercontinental (IAH). Some flights may connect through major hubs like Portland Intl. (PDX), Seattle - Tacoma Intl. (SEA), or San Diego Intl. (SAN) before reaching Houston. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Denver, CO (DEN) to Houston, TX (IAH) at the last minute?
Typically, booking a last minute flight from Denver, CO (DEN) to Houston, TX (IAH) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Denver, CO (DEN) to Houston, TX (IAH) flight and hotel package?
Securing a Denver, CO (DEN) to Houston, TX (IAH) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental)?
If you booked your Denver, CO (DEN-Denver Intl.) to Houston, TX (IAH-George Bush Intercontinental) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Denver Intl.
Destination airport
George Bush Intercontinental
Airlines serving
Alaska Airlines, American Airlines, Delta, JetBlue Airways
Roundtrip price
CA $277
Distance
1378 km
Average flight time
3 hours 31 mins

Book with confidence

Denver to Houston Flights

The easy way to book your flights from Denver to Houston 

With Expedia, it’s simple to find and book flights to Houston from Denver whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to George Bush Intercontinental, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Denver to Houston today, tomorrow, or this week.  

 

Save dollars with cheap flights from Denver Intl., DEN to George Bush Intercontinental, IAH 

Sort your search results by price to find great deals on your flight from Denver to Houston—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Houston from Denver currently is just CA $278 rising to CA $886.  

Here are more money-saving tips: 

  • Fly in August when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Houston  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Houston from Denver 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Houston with Expedia today.

Denver to Houston Flights

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