£421+ Cheap flights to Colorado

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 28/10. Fares are subject to change and may not be available on all flights or dates of travel.
— DEN
2 Aug — 9 Aug1
1 adult
1 adult, Economy, 0 bags

Flights to Colorado in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Colorado
Explore the most affordable flight options available to Colorado. Find the lowest fares based on data from user searches, with prices last updated on 3 July 2026.

Thu 1/1021:25
LHR
-
DEN
1 stop28h 35m
Multiple Airlines
Tue 13/1011:25
DEN
-
LHR
1 stop12h 05m
Multiple Airlines
Deal found 1/7£638
Fri 18/912:00
LHR
-
DEN
2 stops28h 40m
Multiple Airlines
Sun 4/1016:40
DEN
-
LHR
1 stop20h 40m
Multiple Airlines
Deal found 2/7£639
Thu 10/906:30
STN
-
DEN
2 stops20h 47m
Multiple Airlines
Thu 24/916:40
DEN
-
STN
2 stops20h 40m
Multiple Airlines
Deal found 1/7£640
Tue 17/1110:10
LGW
-
DEN
1 stop19h 54m
Multiple Airlines
Tue 4/516:40
DEN
-
LGW
1 stop15h 00m
Multiple Airlines
Deal found 3/7£641
Tue 1/906:55
LHR
-
DEN
1 stop13h 50m
Lufthansa
Tue 29/919:15
DEN
-
LHR
2 stops18h 25m
Lufthansa
Deal found 1/7£641
Wed 26/813:05
LHR
-
DEN
1 stop12h 55m
Icelandair
Tue 1/916:40
DEN
-
LHR
1 stop12h 15m
Icelandair
Deal found 2/7£642
Wed 18/1109:50
LCY
-
DEN
1 stop12h 45m
Lufthansa
Wed 5/517:40
DEN
-
LCY
1 stop17h 15m
Lufthansa
Deal found 3/7£642
Tue 15/913:35
LHR
-
DEN
Nonstop9h 55m
British Airways
Tue 6/1018:35
DEN
-
LHR
Nonstop9h 00m
British Airways
Deal found 2/7£642
Tue 1/914:50
LHR
-
DEN
Nonstop9h 45m
Lufthansa
Tue 15/917:35
DEN
-
LHR
Nonstop9h 05m
Lufthansa
Deal found 29/6£643
Sat 5/914:00
LGW
-
DEN
2 stops39h 05m
Multiple Airlines
Fri 11/920:10
DEN
-
LGW
1 stop11h 30m
Multiple Airlines
Deal found 29/6£644
Tue 15/906:00
LHR
-
DEN
2 stops34h 40m
Multiple Airlines
Wed 7/1016:40
DEN
-
LHR
1 stop12h 15m
Multiple Airlines
Deal found 2/7£644
Mon 24/820:50
LGW
-
DEN
3 stops29h 10m
Multiple Airlines
Tue 8/916:40
DEN
-
LGW
2 stops21h 35m
Multiple Airlines
Deal found 29/6£645

Find flights to Colorado

Browse one-way and return flights deals to Colorado on Cheapflights. Flight deals are based on user searches and were last updated on 3 July 2026
Explore Colorado

Find flight deals to Colorado

Find the latest flights to Colorado in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 3 July 2026.

Return from

£638

One-way from

£421

Popular in

July

Cheapest in

September

Average price

£749

Good round-trip deal

£670 or less

Good one-way deal

£747 or less
Air Canada
  • Air Canada
  • 1/10-13/10
  • 2 total stops
  • 40h 40m total
  • London to Denver
28/10
  • 28/10
  • 3 total stops
  • 37h 00m total
  • London to Colorado
Highest demand for flights based on searches. 10% potential increase in price (£75 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (£12 potential savings vs. average return price).
Average for return flights in July 2026
Price to beat on a round-trip flight from London to Colorado.
Price to beat on a one-way flight from London to Colorado.

Cheapflights Fare Finder

 
Locate flights to Colorado that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 3 July 2026.
Use the filters below to find and compare flights to Colorado that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

LondonDenver

LTN - DEN

LTNDEN

London Luton

Mon 24/8

08:00-12:40

2 stops35h 40m

Denver Intl

Tue 8/9

16:40-22:55

2 stops23h 15m

£652

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Sun 6/9

16:25-13:45

1 stop28h 20m

Denver Intl

Mon 14/9

13:42-09:20

1 stop12h 38m

£652

LondonDenver

LTN - DEN

LTNDEN

London Luton

Sat 5/9

06:00-19:00

2 stops20h 00m

Denver Intl

Sat 19/9

16:40-22:15

2 stops22h 35m

£659

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Thu 17/9

06:40-23:59

2 stops24h 19m

Denver Intl

Mon 5/10

06:40-16:25

2 stops26h 45m

£671

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Fri 18/9

06:40-23:47

2 stops24h 07m

Denver Intl

Fri 25/9

06:40-13:35

3 stops23h 55m

£679

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Sun 1/11

06:40-22:53

2 stops22h 13m

Denver Intl

Sun 15/11

06:30-18:30

2 stops29h 00m

£683

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Fri 14/8

06:40-22:05

2 stops22h 25m

Denver Intl

Thu 27/8

06:40-21:40

2 stops32h 00m

£688

LondonDenver

LTN - DEN

LTNDEN

London Luton

Mon 17/8

06:00-11:20

3 stops36h 20m

Denver Intl

Thu 17/9

09:10-16:45

2 stops24h 35m

£693

LondonDenver

LGW - DEN

LGWDEN

London Gatwick

Tue 3/11

10:00-22:43

2 stops19h 43m

Denver Intl

Tue 17/11

06:10-09:00

2 stops19h 50m

£695

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Sat 5/9

07:30-13:30

1 stop13h 00m

Denver Intl

Sat 12/9

17:35-09:40

Nonstop9h 05m

£704

Flights are sorted by cheapest return flights first.

Deals found on 29/6

Showing 1-10 of 33 resultsSorted by cheapest first
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Best time to book a flight to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado 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 to Colorado

How long is the flight to Colorado?

On average, a flight from London to Colorado takes 16 hours 40 minutes. Flights to Colorado from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

Weekly flight availability to Colorado

The most flights from London to Colorado are scheduled on a Monday (16 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (16 on average).

What are the cheapest airlines that fly to Colorado?

The cheapest airlines flying from London to Colorado are Iberia, United Airlines and Air Canada.

Rainfall in Colorado by month

Plan your trip to Colorado by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Colorado ranges from 13.0 - 58.0 inches per month. May is typically the wettest month, when rainfall can reach 58.0 mm. January is typically the driest time to visit Colorado when rainfall is around 13.0 mm.

Temperature in Colorado by month

Plan your trip to Colorado by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Colorado, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -1.0 C).

When is the best time to book a flight to Colorado?

The price you pay for your flight to Colorado may vary depending on when you book. For the best chance of a lower fare, look to book 66 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What are the most popular places to fly to in Colorado?

Destination popularity is based on the amount of flight searches to Colorado in the last few years. This data was updated on 3 July 2026.
The most popular places in Colorado to fly to are Denver, Colorado Springs and Aspen.

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated 3 July 2026.
Check out reviews from past customers who have flown Austrian Airlines,United Airlines, andIcelandair to the United States to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

7.6

Crew

8.1

Entertainment

6.8

Food

6.8

Overall

7.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2026

VIE - IAD

The vegetarian choice wasn’t good. The snack was bad. Otherwise, everything was great.

Boarding

7.6

Crew

8.1

Entertainment

6.8

Food

6.8

Overall

7.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2026

VIE - IAD

The vegetarian choice wasn’t good. The snack was bad. Otherwise, everything was great.

Boarding

7.6

Crew

8.1

Entertainment

6.8

Food

6.8

Overall

7.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2026

VIE - IAD

The vegetarian choice wasn’t good. The snack was bad. Otherwise, everything was great.

Boarding

7.6

Crew

8.1

Entertainment

6.8

Food

6.8

Overall

7.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2026

VIE - IAD

The vegetarian choice wasn’t good. The snack was bad. Otherwise, everything was great.

Boarding

7.6

Crew

8.1

Entertainment

6.8

Food

6.8

Overall

7.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2026

VIE - IAD

The vegetarian choice wasn’t good. The snack was bad. Otherwise, everything was great.

Boarding

7.6

Crew

8.1

Entertainment

6.8

Food

6.8

Overall

7.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2026

VIE - IAD

The vegetarian choice wasn’t good. The snack was bad. Otherwise, everything was great.

FAQs about flying to Colorado

Colorado climate

Coloradans claim their weather is perfect. The state averages 296 sunny days a year. There isn’t much precipitation in the lower elevations, but huge amounts of snow in the mountains.Winter starts in late November and, depending on the snow depth, and lasts into April. In Denver and Colorado Springs, summer days are hot and dry and the evenings mild. Summer comes to the mountains in June, and the warm weather lasts until mid-September. Winter hits around mid-November, though snowstorms can start in the mountains in September.The climate from one area to another can be dramatically different due to the difference in elevation and the orientation of mountain ranges and valleys.

Getting around Colorado

Denver is a transportation hub for Colorado, both for entering and leaving the state and for finding transportation to other Colorado destinations. For a stay in Denver, you can rely on public transportation. Taxis and shuttles are also available in other large cities and towns. To help you get around the state, there are commuter airlines and shuttle buses from the Denver airport. Amtrak has a couple of routes through the state, and some say the Durango and Silverton Narrow Gauge Railroad in the southwest isn’t to be missed.

Getting around the state usually involves a car to some extent, and with visitor centres statewide, you have little trouble getting directions and tips on getting from one place to another.

A world-renowned destination for cyclists, interstate highway shoulders are open to cyclists (except in urban areas). The mountain roads are more demanding, and one of the most popular and challenging routes is the Million Dollar Highway.

What is good to know if travelling to Colorado?

  • The Rocky Mountains of Colorado contain some of the greatest skiing to be had anywhere in North America. Most popular of all resorts is Aspen, with access to four main ski areas. Even if you’re not a ski-bunny though, consider booking Colorado flights to Aspen in the summertime, when a host of activities can be enjoyed against a spectacular backdrop.  The Independence Pass that connects Aspen to Denver is only open in the summer months and is an unmissable drive with stunning views of the surrounding mountains.
  • Colorado’s capital, Denver is known as the “Mile High City” as it is situated at an altitude of 5,280ft above sea level. It is also the location in which more US money is made than anywhere else worldwide, thanks to the Denver Mint. The Mint is open for tours, which can be booked, free of charge, from the reservation center on Colfax Avenue.
  • The Royal GorgeBridge is the highest suspension bridge in the world. Located across the gorge in Canon City, the bridge is a quarter of a mile long with a main span of 880ft. The Royal Gorge Bridge and Park in the surrounding area also houses the world’s steepest incline railway, an aerial tram, a skycoaster and the silver rock railway.
  • Colorado Springs is the state’s second city and home to the “Garden of the Gods”. The public park is filled with giant red sandstone “hogsback” formations, so called because they resemble the backs of pigs. The park is popular with rock climbers as well as sightseers.
  • Colorado was once lucrative for the gold rush and the fur trade. Though both occupations have died out, you can still find out about the trades at some excellent museums in the state. The Argo Gold Mine and Mill in Idaho Springs holds tours of the Argo tunnel and mine as well as lessons in gold panning. Fort Vasquez Museum in Platteville is the site of an 1835 fur-trading fort, where exhibitions interpret the fur-trade era.
  • When is the best time to fly to Colorado?

    Peak Season: Summer, Memorial Day to Labor Day, is the peak season with lots of crowds and high rates. The ski resorts peak again in winter, and they are as crowded in July as they are in February. Off Season: The closest you will come to off season are the autumn and spring shoulder seasons. The wineries are in production and draw visitors, the autumn also has aspens turning to gold, and spring the blooming wildflowers. The best time to book Colorado flights is mid-September through October as the weather usually stays warm.

  • Can I find cheaper flights to Colorado if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Colorado on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Colorado?

    Based on reviews from Cheapflights users, Iberia is rated the highest out of the airlines that fly to Colorado.

  • What is the cheapest airport to fly to in Colorado?

    Denver Intl is currently the cheapest airport to fly to in Colorado. One-way flights to Denver Intl typically cost £34, while return flights cost around £164.

  • How much is a return flight to Colorado?

    A return flight to Colorado will typically cost around £269, however they can be found for as little as £164.

  • Where does the fastest flight to Colorado depart from?

    For those looking to save time traveling to Colorado, London offers the quickest one-way flight (9 hours 40 minutes).

  • Does Denver Intl have car hire?

    Yes. Those touching down at Denver Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Denver Intl?

    Yes. Denver Intl has hotels nearby for those requiring accommodations. The Westin Denver International Airport is the closest property to Denver Intl (0.0 mi away from Denver Intl).

See more FAQs

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