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Cheap Flights from Houston to Denver

Compare Houston to Denver flight deals

Find the cheapest month or even day of the year to fly to Denver

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Flight deals from Houston to Denver

Looking for a cheap last-minute deal or the best return flight from Houston to Denver? Find the lowest prices on one-way and return tickets right here.
Denver.C$58 per passenger.Departing Wed., Oct. 1.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Houston George Bush Intercntl. on Wed., Oct. 1, arriving in Denver International.Price includes taxes and charges.From C$58, select.
Denver.C$58 per passenger.Departing Tue., Sep. 30.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Houston George Bush Intercntl. on Tue., Sep. 30, arriving in Denver International.Price includes taxes and charges.From C$58, select.
Denver.C$60 per passenger.Departing Tue., Nov. 4.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Houston George Bush Intercntl. on Tue., Nov. 4, arriving in Denver International.Price includes taxes and charges.From C$60, select.
Denver.C$89 per passenger.Departing Mon., Dec. 15.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Mon., Dec. 15, arriving in Denver International.Price includes taxes and charges.From C$89, select.
Denver.C$92 per passenger.Departing Sat., Feb. 7.One-way flight with United.Outbound direct flight with United departs from Houston George Bush Intercntl. on Sat., Feb. 7, arriving in Denver International.Price includes taxes and charges.From C$92, select.
Denver.C$92 per passenger.Departing Sat., Jan. 17.One-way flight with United.Outbound direct flight with United departs from Houston George Bush Intercntl. on Sat., Jan. 17, arriving in Denver International.Price includes taxes and charges.From C$92, select.
Denver.C$92 per passenger.Departing Tue., Dec. 16.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Houston Hobby on Tue., Dec. 16, arriving in Denver International.Price includes taxes and charges.From C$92, select.
Denver.C$213 per passenger.Departing Sun., Mar. 15.One-way flight with United.Outbound direct flight with United departs from Houston George Bush Intercntl. on Sun., Mar. 15, arriving in Denver International.Price includes taxes and charges.From C$213, select.

Find the cheapest month to fly from Houston to Denver

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Houston to Denver flights are currently cheapest in September.
Sep.
from C$58
Oct.
from C$58
Nov.
from C$60
Dec.
from C$89
Jan.
from C$92
Feb.
from C$92
Mar.
from C$213
Apr.
from C$213
May
Find prices
Jun.
from C$484
Jul.
Find prices
Aug.
Find prices

Direct flights from Houston to Denver

Alternative Houston to Denver routes

Looking for the cheapest, fastest or easiest route from Houston to Denver? You could fly into the following airports instead.

Houston to Denver: Flight information

The things to know before you go.
Cheapest flight foundC$58
Cheapest month to flySeptember
Average flight time2 hrs, 36 mins
Most popular airlineSouthwest Airlines
Average flights per week231

Finding cheap flights from Houston to Denver: Frequently asked questions

There are 4 airports in Denver: Denver Arapahoe Co, Broomfield, Denver International, and Northern Colorado Regional.
The best price we found for a return flight from Houston to Denver is C$112. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 36 minutes is the average flight time from Houston to Denver.
Southwest Airlines, United and Air Canada fly direct from Houston to Denver.
As of September 2025, there are 231 flights per week flying from Houston to Denver.
The cheapest month to fly from Houston to Denver is usually September.
If you're flying from Houston, the cheapest airport near Denver is Denver International – which is 29.9 km away from the centre of Denver. We've found flights into this airport from C$112.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Houston to Denver on Tuesday, September 30, 2025.
Yes – the average flight time is 2 hours and 36 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Denver but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Denver is around 40 days in advance, so don’t leave your flight to the last minute.
In September, the average temperature is usually around 17°C. July is typically the warmest month in Denver, when it usually averages around 31°C. You can expect the least rain in January. The coldest month is December, with temperatures averaging -6°C. The rainiest month is July.
The cheapest airline that flies to Denver is Frontier Airlines .

Flying from Houston to Denver: what you need to know

  • Start planning your vacation by checking out the departure points for your flight from Houston to Denver. Explore the options for leaving from George Bush Intercontinental Airport (IAH) or William P. Hobby Airport (HOU), two of the city's main airports.

  • When it comes to where you'll disembark, Denver's major arrival point is Denver International Airport (DEN).

  • A direct flight from Houston to Denver takes on average 2 hours 35 minutes. The timezone in Denver is UTC-6, which is 1 hour behind Houston.

  • The busiest route for flights from Houston to Denver is from George Bush Intercontinental Airport (IAH) to Denver International Airport (DEN). There are 118 services every week between these two airports. If you want to get going first thing, the earliest flight from IAH to DEN is the 05:00 United Airlines option. If you have other commitments or plans on your day of travel, the last departure is at 23:13 with Frontier Airlines.

  • For a smooth journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This way, you can comfortably catch your flight from Houston to Denver.

  • Delays at security and check-in are likely if you're heading away during high season, so allow some extra wiggle room. A good rule of thumb for peak periods? Arrive up to four hours ahead for international flights and two hours for domestic departures.

  • After booking your cheap flights from Houston to Denver, get your documents ready. A passport or visa isn't needed since you're travelling within United States. As long as you have another valid form of identification, like a driver's licence or an ID card, you're good to go.

Flying from Houston

George Bush Intercontinental Airport (IAH)

  • You can reserve a direct flight from Houston to Denver leaving from George Bush Intercontinental Airport (IAH). Start your journey at IAH and arrive at Denver International Airport (DEN).

  • When departing from IAH, you can catch a direct flight from Houston to Denver with United Airlines.

  • We make it simple to find a flight from Houston to Denver with a stopover. To see all your options departing from George Bush Intercontinental Airport, deselect 'Direct flights only.' Next, choose a flight that has a stop long enough to see the sights of your chosen city. Some popular stopovers include:

    • Will Rogers World Airport (OKC)

    • San Antonio International Airport (SAT)

    • Tulsa International Airport (TUL)

  • The journey from central Houston to IAH takes around 49 minutes on public transport. If you drive, ride-share or take a cab, you'll cover the 27 kilometres in 20 minutes or so, depending on traffic.

  • Have an early flight from Houston to Denver? Avoid the stress of rushing to the airport (and sneak in some extra precious sleep) by picking one of these stays close to George Bush Intercontinental Airport:

William P. Hobby Airport (HOU)

  • It's also possible to book a direct flight from Houston to Denver departing William P. Hobby Airport (HOU). Connections from HOU will take you to Denver International Airport (DEN).

  • Frontier Airlines has direct flights from Houston to Denver departing from HOU. Book your favourite seat and reach your destination in a single journey.

  • Break up your flight from Houston to Denver with a stop so you can freshen up or perhaps go somewhere you've never been before. Some popular stopovers between George Bush Intercontinental Airport and Denver include:

    • Will Rogers World Airport (OKC)

    • San Antonio International Airport (SAT)

    • Tulsa International Airport (TUL)

  • HOU is around 19 kilometres from central Houston. It'll take 22 minutes or so to get to the airport in a car from the city centre. Public transport takes roughly 1 hour and 42 minutes.

  • Get your vacation started early with an extra night away from home. Before your flight from Houston to Denver, chill out in one of these hotels near William P. Hobby Airport:

Arriving in Denver

Denver International Airport (DEN)

  • Denver International Airport (DEN) to central Denver is roughly 40 kilometres. It takes about 34 minutes to get to the centre driving.

  • If you're travelling by public transport, expect a journey time of about 1 hour and 31 minutes.

  • After your flight from Houston to Denver has touched down, relax at a nearby hotel. SpringHill Suites Denver Airport is a comfy option that's an easy drive from DEN.

How to find the cheapest flights from Houston to Denver

  • Currently, C$58 is the lowest price we've found for a one-way ticket from Houston to Denver. The cheapest price for a return flight is C$112. Keep in mind fares may change due to demand at the time of booking.

  • Book 9 months before your departure date. After looking at the numbers on our calendar, this is how far you should book ahead to find cheap flights from Houston to Denver.

  • May is the cheapest month for tickets from Houston to Denver. If you want to travel at a different time of year, the 'Whole month' tool will show you the lowest prices for every month.

  • Create a Price Alert for cheap flights from Houston to Denver. You don't need to check every day to find out if prices have fallen. We'll update you as soon as there's a change in price.

  • Tailor your flights using filters. Select your departure and arrival times, airlines and total journey duration. You can also sort results by 'Fastest,' 'Cheapest' or 'Best' flights from Houston to Denver.

Best time to go to Denver

  • April is the quietest month for flights from Houston to Denver, while July is the busiest. Figure out the best time to go to Denver based on whether you want a laid-back vibe or a lively atmosphere.

  • The warmest month in Denver is July, with temperatures ranging between 14ºC and 32ºC. Lock in your flights from Houston to Denver in this month if this is the type of weather you like.

  • If you want cooler conditions, look for a cheap ticket from Houston to Denver in January when temperatures average between -9ºC and 7ºC.

More about Denver

  • Start your Denver trip off on the right foot by choosing the perfect place to stay. Once you've booked your flight from Houston to Denver, browse our selection of accommodation options including:

  • Denver Art Museum and Union Station are just two of the big attractions to add to your Denver to-do list. Keep the momentum going by heading to Denver Botanic Gardens.

Complete your Denver trip with a car rental

  • Finding you a cheap flight from Houston to Denver isn't the only trick up our sleeve. Check out our car rentals in Denver and explore at your own pace. We find deals from trusted car rental companies and put them all in one place. Instantly compare offers and then book with no fees.

Plan the rest of your trip from Houston to Denver

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.