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$37+ Cheap flights from Houston 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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — DEN
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Cheapflights Tip: The best prices from Houston to Denver Intl are usually found in January or February, booked 59 days in advance, depart on a Wednesday or Friday and return on a Friday

Cheap flight deals from Houston to Denver

Cheapest flights from Houston to Denver
Explore the most affordable flight options available from Houston to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.

This Frontier deal was found by Cheapflights users on 12/3. 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.
Wed 12/1010:45 amIAH - DEN
Nonstop2h 47mFrontier
Thu 12/119:00 pmDEN - IAH
Nonstop2h 31mFrontier
Deal found 12/3$80
This Kiwi.com deal was found by Cheapflights users on 12/3. 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.
Mon 12/159:06 pmIAH - DEN
1 stop7h 52mFrontier
Tue 12/169:00 pmDEN - IAH
Nonstop2h 31mFrontier
Deal found 12/3$89
This Frontier deal was found by Cheapflights users on 12/3. 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.
Wed 12/1010:45 amIAH - DEN
Nonstop2h 47mFrontier
Fri 12/127:00 amDEN - IAH
Nonstop2h 37mFrontier
Deal found 12/3$90
This Super.com deal was found by Cheapflights users on 12/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/166:45 amIAH - DEN
Nonstop2h 42mFrontier
Thu 12/187:00 amDEN - IAH
Nonstop2h 37mFrontier
Deal found 12/2$98
This Flightnetwork deal was found by Cheapflights users on 12/3. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1010:45 amIAH - DEN
Nonstop2h 47mFrontier
Mon 12/157:00 amDEN - IAH
Nonstop2h 37mFrontier
Deal found 12/3$109
This Cheapflightsfares deal was found by Cheapflights users on 12/2. 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.
Wed 12/108:07 pmIAH - DEN
1 stop13h 17mFrontier
Tue 12/169:00 pmDEN - IAH
Nonstop2h 31mFrontier
Deal found 12/2$110
This Kiwi.com deal was found by Cheapflights users on 12/3. 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 12/106:45 amIAH - DEN
Nonstop2h 42mFrontier
Sat 12/136:00 amDEN - IAH
1 stop15h 18mFrontier
Deal found 12/3$113
This Frontier deal was found by Cheapflights users on 12/3. 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.
Thu 12/116:45 amIAH - DEN
Nonstop2h 42mFrontier
Tue 12/169:00 pmDEN - IAH
Nonstop2h 31mFrontier
Deal found 12/3$114
This Frontier deal was found by Cheapflights users on 12/3. 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 12/910:45 amIAH - DEN
Nonstop2h 47mFrontier
Tue 12/169:00 pmDEN - IAH
Nonstop2h 31mFrontier
Deal found 12/3$118
This Southwest deal was found by Cheapflights users on 12/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:20 pmHOU - DEN
Nonstop2h 35mSouthwest
Wed 1/76:05 amDEN - HOU
Nonstop2h 35mSouthwest
Deal found 12/1$236
This Southwest deal was found by Cheapflights users on 12/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:45 pmHOU - DEN
Nonstop2h 30mSouthwest
Tue 1/66:05 amDEN - HOU
Nonstop2h 35mSouthwest
Deal found 12/3$248
This Southwest deal was found by Cheapflights users on 12/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:20 pmHOU - DEN
Nonstop2h 35mSouthwest
Wed 1/71:55 pmDEN - HOU
1 stop4h 45mSouthwest
Deal found 12/3$254

Find flight deals from Houston to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) 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 December 4, 2025.

Round-trip from

$78
(Kiwi.com)

One-way from

$37
(CheapOair)

Popular in

December

Cheapest in

January

Average price

$214
From Houston to Denver Intl
Search Deals
One-way flight from Houston to Denver Intl
Search Deals
High demand for flights, 4% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Houston 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 December 4, 2025.
Use the filters below to find and compare flights from Houston to Denver that are best for you.

Fly from

Houston

Fly to

Denver

Route

Depart

Return

Price

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Thu 2/12

10:28 pm-8:38 am

1 stop11h 10m

Denver Intl

Sun 2/15

7:00 am-10:37 am

Nonstop2h 37m

$142

HoustonDenver

HOU - DEN

HOUDEN

Houston Hobby

Sat 2/14

9:35 pm-11:10 pm

Nonstop2h 35m

Denver Intl

Tue 2/17

8:40 pm-12:05 am

Nonstop2h 25m

$145

HoustonDenver

HOU - DEN

HOUDEN

Houston Hobby

Wed 1/14

4:40 pm-7:35 pm

1 stop3h 55m

Denver Intl

Wed 1/21

6:25 pm-9:55 pm

Nonstop2h 30m

$162

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Wed 3/11

11:32 am-1:16 pm

Nonstop2h 44m

Denver Intl

Mon 3/16

9:00 pm-12:31 am

Nonstop2h 31m

$164

HoustonDenver

HOU - DEN

HOUDEN

Houston Hobby

Fri 1/9

9:05 pm-10:40 pm

Nonstop2h 35m

Denver Intl

Wed 1/14

1:55 pm-7:40 pm

1 stop4h 45m

$180

HoustonDenver

HOU - DEN

HOUDEN

Houston Hobby

Sat 1/10

5:35 am-7:10 am

Nonstop2h 35m

Denver Intl

Wed 1/14

1:55 pm-7:40 pm

1 stop4h 45m

$180

HoustonDenver

HOU - DEN

HOUDEN

Houston Hobby

Wed 1/14

4:40 pm-7:35 pm

1 stop3h 55m

Denver Intl

Fri 1/23

6:25 pm-9:55 pm

Nonstop2h 30m

$180

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Mon 12/22

9:34 pm-11:04 pm

1 stop26h 30m

Denver Intl

Mon 12/29

9:07 pm-12:38 am

Nonstop2h 31m

$181

HoustonDenver

HOU - DEN

HOUDEN

Houston Hobby

Thu 2/5

9:05 pm-10:40 pm

Nonstop2h 35m

Denver Intl

Sun 2/8

6:05 am-9:40 am

Nonstop2h 35m

$189

HoustonDenver

HOU - DEN

HOUDEN

Houston Hobby

Wed 1/14

5:45 am-1:37 pm

1 stop8h 52m

Denver Intl

Sat 1/17

1:31 pm-10:33 pm

1 stop8h 02m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

Showing 1-10 of 40 results
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Best time to book a flight from Houston to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Houston 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 to Denver

How far ahead should I book a flight from Houston to Denver?

Use this chart to determine the optimal time to book a round-trip flight from Houston to Denver. Price data was last updated on November 28, 2025.

The best time to book flights from Houston to Denver is 59 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Houston to Denver?

Currently, January is the cheapest month in which you can book a flight from Houston to Denver (average of $42). Flying from Houston to Denver in July is currently the most expensive (average of $103). 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 HOU to DEN?

Find hourly flight availability from Houston 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 December 4, 2025.

A simple way to save on the total cost of your ticket is to fly from Houston to Denver in the evening. If you’re flexible enough to do this you can expect to save up to 35% on your trip compared to booking a flight in the afternoon.

What is the cheapest day to fly from Houston to Denver?

Use this chart to determine the cheapest time to fly round-trip from Houston to Denver. Price data was last updated on December 16, 2024.

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

How often are flights from Houston to Denver delayed?

About 16% of weekly flights between Houston and Denver have experienced delays in the past year, with the average delay time being 140 minutes.

What is the most punctual flight time for Houston to Denver flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Houston to Denver flights?

Over the last year, Frontier have had the lowest number of delays on this route, with just 14% of flights being delayed.

The best insider tips for Houston 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 to Denver trip
Airlines
Frontier

Frontier's UpFront Plus seats guarantee 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 a personal item only, no carry-on bags without extra fees.


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

Read more about United Airlinesby Harriet Baskas
Airports
IAH

Check the IAH Depart tab for current security wait times to plan your arrival accordingly.

Read more about IAHby Evie Carrick
HOU

HOU's compact terminal allows travelers to arrive closer to departure time, making it convenient for quick check-ins.

Read more about HOUby Scott Laird
DEN

Use the A Line train for a quick 37-minute ride from DEN to Denver's Union Station, running every 15 minutes.

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
Scott Laird

Scott Laird

Expert on HOU

Scott Laird

Scott Laird

Originally from Anchorage, Alaska, Scott is a frequent contributor to Fodor’s Travel Guide, Conde Nast Traveler, TravelAge West, and TravelPulse. He holds a Bachelor of Science in Organizational Management from Alaska Pacific University and a Master of Science in Airline Management from Embry-Riddle Aeronautical University, and has worked in the airline and hotel industries and as a travel consultant.

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 December 4, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Houston to Denver. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,250 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,250 reviews
Southwest
8.0
Very good
4,250 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,011 reviews
Southwest
8.0
Very good
4,250 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,066 reviews
Southwest
8.0
Very good
4,250 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,047 reviews
Southwest
8.0
Very good
4,250 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Frontier
5.8
Fair
3,091 reviews
Southwest
8.0
Very good
4,250 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Houston 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?

    Located just 18.5 mi from the city center, Denver Intl is the airport most travelers will use when flying to Denver from Houston. Booking flights from Houston to Denver Intl (DEN) should be relatively easy as there are 5 daily inbound flights from Houston from 5 different airlines.

  • How long is the flight from Houston to Denver?

    Airlines like Frontier, Southwest, and Delta fly from Houston to Denver in about 2h 35m. The time it takes to get you to your destination can typically vary by up to 8h 35m. The distance between Houston and Denver is about 883 mi. 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 to Denver round-trip?

    Currently priced at $56, Frontier will fly you from Houston to Denver and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and United Airlines - these airlines can fly you to your destination from $108 and $154, respectively. Frontier is priced at 69% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Houston to Denver one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $30. However, be on the lookout for offers from Southwest and American Airlines, as they are both options that can get you from Houston to Denver for a low price.

  • What are the cheapest flights from Houston to Denver?

    On average you can expect to pay $296 for a flight from Houston to Denver. The cheapest flight overall is $121 while the most popular route, (Houston Hobby - Denver Intl) is currently priced at $83.

  • Can I find deals for flights from Houston to Denver that include hotel bookings?

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

  • How can I find direct flights from Houston to Denver?

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

  • Can I find deals for business class flights from Houston to Denver?

    Yes. Cheapflights offers flight deals from Houston 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 to Denver?

    Currently, January is the cheapest month in which you can book a flight from Houston to Denver (average of $42). Flying from Houston to Denver in July is currently the most expensive (average of $103). 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
Black Hawk
Westminster
Broomfield
Lakewood
Golden
Winter Park
Thornton
Greeley
Lone Tree
Cripple Creek
Silverthorne
Central City
Frisco
Wheat Ridge
Manitou Springs
Fort Morgan
Brighton
Longmont
Idaho Springs
Parker

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Houston to Denver

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Denver flights
Hobby to Denver flights
George Bush Intcntl to Denver flights
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El Paso to Colorado Springs flights
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Hobby to Grand Junction flights
George Bush Intcntl to Grand Junction flights

Top 5 airlines flying from Houston to Denver

Discover the top 5 airlines that operate flights from Houston 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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$164FlexibilityNo cancel feeOn-time62%
DeltaCheapest$108Average$306FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$158Average$273FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$162Average$316FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$196Average$415FlexibilityNo cancel feeOn-time71%

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