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Cheap flights from Houston to Denver

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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.P4,624 per passenger.Departing Tue, 30 Sep, returning Tue, 21 Oct.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Houston George Bush Intercntl. on Tue, 30 Sep, arriving in Denver International.Inbound direct flight with Frontier Airlines departs from Denver International on Tue, 21 Oct, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From P4,624, select.
Denver.P4,674 per passenger.Departing Sat, 15 Nov, returning Tue, 18 Nov.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Houston George Bush Intercntl. on Sat, 15 Nov, arriving in Denver International.Inbound direct flight with Frontier Airlines departs from Denver International on Tue, 18 Nov, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From P4,674, select.
Denver.P4,681 per passenger.Departing Wed, 22 Oct, returning Sat, 25 Oct.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Houston George Bush Intercntl. on Wed, 22 Oct, arriving in Denver International.Inbound direct flight with Frontier Airlines departs from Denver International on Sat, 25 Oct, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From P4,681, select.
Denver.P4,681 per passenger.Departing Wed, 10 Dec, returning Sat, 13 Dec.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Houston George Bush Intercntl. on Wed, 10 Dec, arriving in Denver International.Inbound direct flight with Frontier Airlines departs from Denver International on Sat, 13 Dec, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From P4,681, select.
Denver.P4,682 per passenger.Departing Sat, 25 Oct, returning Sat, 1 Nov.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Houston George Bush Intercntl. on Sat, 25 Oct, arriving in Denver International.Inbound direct flight with Frontier Airlines departs from Denver International on Sat, 1 Nov, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From P4,682, select.
Denver.P4,741 per passenger.Departing Mon, 22 Sep, returning Fri, 26 Sep.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Houston George Bush Intercntl. on Mon, 22 Sep, arriving in Denver International.Inbound direct flight with Frontier Airlines departs from Denver International on Fri, 26 Sep, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From P4,741, select.
Denver.P6,565 per passenger.Departing Thu, 20 Nov, returning Tue, 2 Dec.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Houston George Bush Intercntl. on Thu, 20 Nov, arriving in Denver International.Inbound direct flight with Frontier Airlines departs from Denver International on Tue, 2 Dec, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From P6,565, select.
Denver.P7,594 per passenger.Departing Sat, 28 Feb, returning Tue, 3 Mar.Return flight with United.Outbound direct flight with United departs from Houston George Bush Intercntl. on Sat, 28 Feb, arriving in Denver International.Inbound direct flight with United departs from Denver International on Tue, 3 Mar, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From P7,594, 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 November.
Sep
from P4,741
Oct
from P4,681
Nov
from P4,674
Dec
from P4,681
Jan
from P7,595
Feb
from P7,595
Mar
from P8,506
Apr
from P17,507
May
from P17,535
Jun
from P17,507
Jul
from P17,535
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 foundP4,624
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 P4,624. 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 P4,624.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Houston to Denver on Tuesday, 30 September 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 .

Travelling from Houston to Denver: what you need to know

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

  • Get off the plane at Denver International Airport (DEN). This is how most airline passengers arrive in Denver.

  • The average time for a direct Houston to Denver flight is 2 hours 35 minutes.

  • Denver's timezone is UTC-6, which makes Denver one hour behind Houston.

  • George Bush Intercontinental Airport (IAH) to Denver International Airport (DEN) is the most popular route that connects these two cities. There are 79 weekly flights to choose from. If you have things to do before heading off, the last flight from Houston to Denver is with Frontier Airlines at 23:13. Go for the first IAH to DEN departure with United Airlines at 05:00 to fit in more activities on your first day in Denver.

  • Leave plenty of time to get on your Houston to Denver flight. It's generally best to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Getting on a plane during a peak month like July? Busy periods (like Thanksgiving, Christmas and New Year) can easily add an hour at security. Be extra cautious and arrive up to four hours before an international flight and two hours before a domestic departure.

How to find the cheapest flights from Houston to Denver

  • P2,397 is the best price for a one-way ticket from Houston to Denver. Return flights start from P4,624. These prices can change depending on demand.

  • Book two months before you travel. Research into pricing trends suggests this is the ideal window for finding cheap Houston to Denver flights.

  • The best month for finding cheap plane tickets from Houston to Denver is May. Use the 'Whole month' tool to compare flight prices, then select the dates offering the lowest fares.

  • You don't need to check every day to find out if prices have dropped when you set up a Price Alert. We'll notify you as soon as a better deal comes up on cheap flights from Houston to Denver.

  • Save money on your Houston to Denver flight with the help of our filters. Select your preferred duration, departure time and airlines, then sort the results by 'Cheapest' to see the best deals.

Flying from Houston

George Bush Intercontinental Airport (IAH)

William P. Hobby Airport (HOU)

  • You can book a direct flight from Houston to Denver out of William P. Hobby Airport (HOU). Nonstop services from HOU will take you to Denver International Airport (DEN).

  • From HOU, you can lock in a direct Houston to Denver plane ticket with Southwest Airlines.

  • HOU is about 16 kilometres from central Houston. It takes 20 minutes or so to get to the airport if you're driving from the city centre. Public transport takes roughly 1 hour 40 minutes.

  • You're off on holiday, so why not spend an extra night away? Think about kicking back in one of these accommodation options near William P. Hobby Airport the day before your flight from Houston to Denver:

  • The majority of flights that leave William P. Hobby Airport make it to their destination as expected. It achieves a consistent on-time performance rate of 81.06%.

  • You'll find HOU at 7800 Airport Boulevard.

Arriving in Denver

Denver International Airport (DEN)

  • The distance from Denver International Airport (DEN) to central Denver is approximately 31 kilometres. It'll take you about 35 minutes to reach the centre driving.

  • If you're travelling by public transport, expect a journey time of roughly 1 hour 30 minutes.

  • Consider staying at The Westin Denver International Airport after touching down from your flight from Houston to Denver. It's a short drive from DEN and a comfortable option if you're eager to rest right after your journey.

  • Get your adventure underway by picking up a Denver International Airport rental car. Grab your wheels from Routes Car Rentals, Dollar or Budget and explore beyond Denver's main sights.

  • For the best deal, reserve your ride from Denver International Airport about one week ahead of your Houston to Denver flight.

  • The address for DEN is 8500 Pena Boulevard.

Best time to go to Denver

  • April is the quietest month for flights from Houston to Denver, while July is the most popular. Choose the best time to visit Denver based on whether you prefer a laid-back vibe or a lively atmosphere.

  • When booking your Houston to Denver tickets, think about the kind of weather forecast you're hoping for. July is the warmest month in Denver, with temperatures ranging from 14ºC (57ºF) to 32ºC (90ºF).

  • Look for cheap flights from Houston to Denver in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -9ºC (16ºF) and 7ºC (45ºF) on average.

More about Denver

Explore more of United States

  • Colorado Springs is just one of the many cities in United States waiting to be discovered once you've seen Denver. Around 105 kilometres to the south, popular attractions include US Northern Command (USNORTHCOM) / North American Aerospace Defence Command (NORAD) Headquarters, Cheyenne Mountain Air Force Station and National Strength and Conditioning Association (NSCA).

  • Around 13 kilometres east of Denver, Aurora is another favourite stop in United States. Get a taste of what this destination has to offer at Magellan's Travel Solutions and Gear, The Fairways at Lowry and Retired Enlisted Association Inc.

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.