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Cheap flights from Houston George Bush Intcntl Airport to Denver from £59

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 27/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — DEN
4 Aug — 11 Aug1
1 adult

Cheap flight deals from George Bush Intcntl to Denver

Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) 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 30 July 2025.

Round-trip from

£118

One-way from

£59

Popular in

December

Cheapest in

January

Average price

£139

Good one-way deal

£155 or less
United Airlines
  • United Airlines
  • 27/8-2/9
  • Nonstop
  • 4h 56m total
  • Houston to Denver
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United Airlines
  • United Airlines
  • 27/9
  • Nonstop
  • 2h 36m total
  • Houston to Denver
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£6 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£4 potential savings vs. average return price).
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Average for round-trip flights in July 2025
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Price to beat on a one-way flight from Houston George Bush Intcntl to Denver Intl.
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Find flight deals from George Bush Intcntl to Denver

Cheapest flights from George Bush Intcntl to Denver
Explore the most affordable flight options available from George Bush Intcntl to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 July 2025.

Wed 27/805:00IAH - DEN
Nonstop2h 32mUnited Airlines
Tue 2/920:31DEN - IAH
Nonstop2h 24mUnited Airlines
Deal found 28/7£118
Sat 13/907:40IAH - DEN
1 stop5h 20mDelta
Sat 13/916:00DEN - IAH
1 stop6h 13mDelta
Deal found 27/7£158
Wed 15/1005:00IAH - DEN
1 stop4h 06mAmerican Airlines
Wed 15/1010:42DEN - IAH
1 stop5h 31mAmerican Airlines
Deal found 28/7£188
Fri 26/919:28IAH - DEN
2 stops16h 16mAlaska Airlines
Wed 1/1011:40DEN - IAH
2 stops17h 44mAlaska Airlines
Deal found 29/7£250

Cheapflights Fare Finder

 
Customise your flight search to find flights from George Bush Intcntl 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 858,174 searches. Data last updated 30 July 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Denver that are best for you.

Fly from

George Bush Intcntl

Fly to

Denver

Route

Depart

Return

Price

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Wed 27/8

05:00-06:32

Nonstop2h 32m

Denver Intl

Tue 2/9

20:31-23:55

Nonstop2h 24m

£118

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Sat 13/9

07:40-12:00

1 stop5h 20m

Denver Intl

Sat 13/9

16:00-23:13

1 stop6h 13m

£158

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Wed 15/10

05:00-08:06

1 stop4h 06m

Denver Intl

Wed 15/10

10:42-17:13

1 stop5h 31m

£188

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Fri 26/9

19:28-10:44

2 stops16h 16m

Denver Intl

Wed 1/10

11:40-06:24

2 stops17h 44m

£250

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Sat 27/9

17:59-19:35

Nonstop2h 36m

£59

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Wed 3/12

11:32-13:16

Nonstop2h 44m

£77

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Fri 12/9

17:32-23:59

1 stop7h 27m

£82

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Wed 3/12

18:19-21:47

1 stop4h 28m

£88

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Tue 28/10

07:00-19:06

2 stops13h 06m

£125

HoustonDenver

IAH - DEN

IAHDEN

Houston George Bush Intcntl

Sun 14/12

06:30-17:23

2 stops11h 53m

£133

Flights are sorted by cheapest return flights first.

Deals found on 28/7

Best time to book a flight from George Bush Intcntl to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from George Bush Intcntl with our price prediction graph.
Estimated return 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 George Bush Intcntl Airport to Denver

How far ahead should I book a flight from Houston George Bush Intcntl Airport to Denver?

Use this chart to determine the optimal time to book a return flight from George Bush Intcntl to Denver. Price data was last updated on 25 July 2025.

Booking 76 days in advance of your planned departure date is, on average, the best time to get cheap flights from Houston George Bush Intcntl Airport to Denver. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Denver?

Currently, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Denver (average of £667). Flying from Houston George Bush Intcntl Airport to Denver in July is currently the most expensive (average of £1,000). 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 IAH to DEN?

Find hourly flight availability from George Bush Intcntl 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 30 July 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 15% on flights from Houston George Bush Intcntl Airport to Denver by exploring options for tickets at midday.

Weekly flight availability from Houston George Bush Intcntl Airport to Denver

Explore weekly flight availability from George Bush Intcntl to Denver. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 30 July 2025.

The most flights from IAH to DEN are scheduled on a Tuesday (37 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (17 on average).

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 30 July 2025.
See what other customers who have flown with Alaska Airlines, Delta, andUnited Airlines from Houston George Bush Intcntl Airport to Denver have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very Good
10,000 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very Good
7,980 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,899 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Frontier
5.9
Fair
3,237 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from George Bush Intcntl 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 George Bush Intcntl?

    Denver Intl (DEN) is the airport you will fly into if you book a flight from Houston George Bush Intcntl to Denver. You should not have trouble finding flights to Denver Intl from Houston George Bush Intcntl; the airport handles an average of 26 inbound flights from Houston George Bush Intcntl per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Denver airport from Houston George Bush Intcntl. It is only a 18.5 mi journey from Denver Intl (DEN) to Denver’s city center.

  • What are the cheapest airlines flying from Houston George Bush Intcntl Airport to Denver round-trip?

    According to our current data, United Airlines (£118), Delta (£158), and American Airlines (£188) offers the cheapest pricing from Houston George Bush Intcntl Airport to Denver. These flights start at 10% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Houston George Bush Intcntl Airport to Denver one-way?

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at £59. Frontier flights start at £77 while deals on Delta start at £82 one-way.

  • What are the most reliable airlines from Houston George Bush Intcntl Airport to Denver?

    Before booking your flight to Denver from Houston George Bush Intcntl Airport, check out the most reliable airlines to get you to your destination on time: Frontier (73%), United Airlines (72%), Air Canada( 69%).

  • What are the cheapest flights from Houston George Bush Intcntl Airport to Denver?

    On average you can expect to pay £155 for a flight from Houston George Bush Intcntl Airport to Denver. The cheapest flight overall is £154 while the most popular route, (Houston George Bush Intcntl - Denver Intl) is currently priced at £121.

  • Can I find deals for flights from George Bush Intcntl to Denver that include hotel bookings?

    Yes. In addition to deals on George Bush Intcntl to Denver flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from George Bush Intcntl to Denver?

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

  • Can I find deals for business class flights from George Bush Intcntl to Denver?

    Yes. Cheapflights offers flight deals from George Bush Intcntl 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 George Bush Intcntl Airport to Denver?

    Currently, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Denver (average of £667). Flying from Houston George Bush Intcntl Airport to Denver in July is currently the most expensive (average of £1,000). 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

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