Cheap Flights from Houston (HOUA) to Denver (DEN)

Compare Houston to Denver International flight deals

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

Book the best Denver International fare with no extra fees

Flight deals from Houston to Denver International

Looking for a cheap last-minute deal or the best return flight from Houston to Denver International? Find the lowest prices on one-way and return tickets right here.

The cheapest month to fly from Houston to Denver International Airport

We’re always keeping an eye on fares, to help you find the lowest one in seconds. Check out the Houston to Denver International Airport flight prices forecast over the next 12 months.
Cheapest month:August
Most expensive month:May

Direct flights from Houston to Denver International

Houston to Denver International: Alternative routes

Compare routes from Houston to Denver below. You may find an airport to fly into that's cheaper, faster, or easier than Denver International.

Houston to Denver: Flight information

The things to know before you go.
Cheapest flight found$233
Cheapest month to flyAugust
Average flight time2 hrs, 36 mins
Most popular airlineSouthwest Airlines
Average flights per week1,062

Finding cheap flights from Houston to Denver International: Frequently asked questions

The best price we found for a return flight from Houston to Denver International is $233. 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 35 minutes is the average flight time from Houston to Denver International.
Southwest Airlines, United and Air New Zealand fly direct from Houston to Denver International.
As of June 2025, there are 358 flights per week flying from Houston to Denver International.
The cheapest month to fly from Houston to Denver International is usually June 2025.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Houston to Denver International Airport on Wednesday, 13 August 2025.
Yes – the average flight time is 2 hours and 35 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 International 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.
The cheapest airline that flies to Denver International is Frontier Airlines .

Flying from Houston to Denver International Airport (DEN): What you need to know

  • Start planning your holiday by checking out the most convenient place to catch your flight from Houston to Denver International Airport (DEN). Explore the options for taking off from George Bush Intercontinental Airport (IAH) or William P. Hobby Airport (HOU), the city's main airports.

  • Jump on a direct Houston to Denver International Airport flight and you'll be travelling for around 2 hours 35 minutes.

  • Denver is one hour behind Houston. Denver International Airport is located in Denver, which follows the UTC-6 timezone.

  • The most popular route is from George Bush Intercontinental Airport (IAH) to Denver International Airport (DEN), with 79 direct weekly services. If you're eager to be on your way, the earliest flight from IAH to DEN is the 5am United Airlines option. If a later flight fits your day better, the last departure is at 10:20pm with United Airlines.

  • Arrive at the airport on time so you don't miss your flight from Houston to DEN. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid the stress of rushing.

  • During high season, allow for longer wait times and show up earlier. Aim for at least two hours ahead for domestic flights and as much as four hours for international trips.

Airports in Houston

George Bush Intercontinental Airport (IAH)

  • Go straight to your destination from George Bush Intercontinental Airport (IAH). Nonstop flights from Houston to Denver International Airport (DEN) are available from here.

  • When jetting out of IAH, you can take a direct flight from Houston to Denver International Airport with United Airlines.

  • The airline with the highest booking numbers between IAH and DEN is United Airlines.

  • The carrier with the most reliable on-time arrival rate on this route is United Airlines.

  • Located around 27 kilometres from central Houston, IAH can be reached in about 20 minutes by car (depending on traffic). The journey on public transport will take roughly 50 minutes.

  • Catching an early flight from Houston to Denver International Airport? Avoid the last-minute rush to the terminal (and get some extra shut-eye) by picking one of these stays near George Bush Intercontinental Airport:

  • 78.42% of flights that depart George Bush Intercontinental Airport land at their destination on time.

  • IAH's address is 16930 JFK Boulevard.

William P. Hobby Airport (HOU)

  • Looking to fly out of William P. Hobby Airport (HOU)? Direct Houston to Denver International Airport (DEN) flight tickets are available from this popular hub.

  • Southwest Airlines offers direct flights from Houston to DEN out of HOU. Book your favourite seat and arrive at your destination in one go.

  • Southwest Airlines has the largest share of bookings on the HOU to DEN route.

  • Fly with Southwest Airlines if punctuality is a priority. Its flights between William P. Hobby Airport and Denver International Airport arrive as scheduled 84.17% of the time.

  • HOU is about 19 kilometres from central Houston. It takes 20 minutes or so to get to the airport by car from the city centre. Public transport takes approximately 1 hour 40 minutes.

  • Want to enjoy an extra night away before catching your Houston to DEN flight? Kick back in a hotel near William P. Hobby Airport before your adventure officially begins. These stays are calling your name:

  • Flights from William P. Hobby Airport have a track record for punctuality, with 81.06% of them arriving right on cue.

  • You'll find HOU at 7800 Airport Boulevard.

About Denver International Airport (DEN)

  • Get off your flight from Houston to Denver International Airport and be snoozing in your hotel bed shortly after. If you're looking for a comfortable option that's not too far from DEN, check out Baymont by Wyndham Denver International Airport.

  • Grab a Denver International Airport rental car and discover Denver and beyond with your own set of wheels. Routes Car Rentals, Dollar and Budget are popular outlets to choose from here.

  • Lock in the best possible rate by booking your ride around one week ahead of your Houston to Denver International Airport flight.

  • You'll find DEN at 8500 Pena Boulevard.

Getting from Denver International Airport (DEN) to central Denver

  • Denver International Airport to the centre of Denver is around 31 kilometres. If you're taking a cab or renting a car, do some research to make your trip as smooth as possible. Journey times will vary based on traffic and the time of day.

  • It takes around 1 hour 30 minutes to get there using public transport.

How to find the cheapest flights from Houston to Denver International Airport (DEN)

  • At the moment, $120 is the lowest price we've found for a one-way ticket from Houston to Denver International Airport. The cheapest price for a return flight is $233. Remember fares can change due to demand at the time of booking.

  • Don't leave things to the last moment. You're more likely to walk away with cheap flights from Houston to DEN if you book in advance. Airlines often offer some great early bird discounts.

  • The 'Whole month' tool will show you the cheapest Houston to Denver International Airport tickets throughout the month. It's an easy way to find a bargain if your travel plans are flexible.

  • Save time looking for cheap flight tickets from Houston to DEN by setting up a Price Alert. We'll send you an email or push notification on the app when prices go down.

  • Discover the best deal on a flight from Houston to Denver International Airport with the help of the filters. Choose your preferred arrival and departure times, airlines and number of stops. You can also sort your results by 'Best,' 'Cheapest' or 'Fastest.'

The best time to fly from Houston to Denver International Airport (DEN)

  • Picture the kind of break you want when planning the timing of your trip. April is the quietest month to visit Denver. July is when most people book flights from Houston to Denver International Airport (DEN), which may be perfect if you're chasing more excitement.

  • The warmest month in Denver is July, with temperatures ranging between 14ºC (57ºF) and 32ºC (90ºF). Book your Houston to DEN flight ticket then if this is the type of weather you enjoy.

  • January sees temperatures of between -9ºC (16ºF) and 7ºC (45ºF). Look for cheap tickets from Houston to Denver International Airport around that time if you like travelling in cooler conditions.

More about Denver

  • When it comes to looking for somewhere to rest your head, you'll find the best stays in Denver right here. Check out these hotels as soon as you've locked in your flight from Houston to Denver International Airport:

  • There are so many things to explore in this city, it can be hard to work out where to begin. Denver Art Museum, Meow Wolf Denver | Convergence Station and Ballpark are highlights which should feature on every Denver itinerary.

Explore more of the United States

  • Denver has its own special appeal, but there are so many other parts of the United States just waiting to be explored. Around 113 kilometres south of Denver, a trip to Colorado Springs will keep you on the go. Start with leading attractions like Garden of the Gods, Pikes Peak Region Attractions and Red Rock Canyon.

  • Around 177 kilometres south of Denver, Pueblo is another essential stop in the United States. Start your sightseeing at Cathedral of the Sacred Heart, Rosemount Museum and Minnequa Lake Park.

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