£424+ 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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
— DEN
21 Jun — 28 Jun1
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 22 May 2026.

Fri 4/906:55
LHR
-
DEN
1 stop13h 50m
Lufthansa
Thu 17/920:25
DEN
-
LHR
1 stop16h 15m
Lufthansa
Deal found 18/5£660
Thu 10/907:30
LHR
-
DEN
1 stop15h 10m
Lufthansa
Thu 17/920:25
DEN
-
LHR
1 stop17h 20m
Lufthansa
Deal found 18/5£661
Sun 7/615:40
LGW
-
DEN
1 stop28h 00m
Icelandair
Sun 14/620:10
DEN
-
LGW
1 stop11h 30m
Icelandair
Deal found 17/5£662
Tue 7/721:25
LHR
-
DEN
1 stop22h 15m
Icelandair
Wed 29/720:10
DEN
-
LHR
1 stop17h 10m
Icelandair
Deal found 22/5£662
Tue 2/615:40
LGW
-
DEN
1 stop28h 00m
Icelandair
Tue 16/620:10
DEN
-
LGW
1 stop32h 35m
Icelandair
Deal found 20/5£663
Fri 4/906:55
LHR
-
DEN
1 stop13h 50m
Multiple Airlines
Thu 17/917:35
DEN
-
LHR
Nonstop9h 05m
Multiple Airlines
Deal found 20/5£663
Mon 22/610:25
LGW
-
DEN
2 stops33h 15m
Multiple Airlines
Mon 6/716:40
DEN
-
LGW
2 stops21h 25m
Multiple Airlines
Deal found 19/5£663
Tue 8/909:30
LHR
-
DEN
2 stops17h 47m
Multiple Airlines
Tue 15/909:40
DEN
-
LHR
2 stops15h 55m
Multiple Airlines
Deal found 21/5£663
Wed 21/1015:40
LGW
-
DEN
1 stop34h 20m
Icelandair
Thu 29/1016:40
DEN
-
LGW
1 stop12h 15m
Icelandair
Deal found 19/5£664
Tue 1/908:45
LHR
-
DEN
2 stops18h 00m
Multiple Airlines
Fri 11/915:40
DEN
-
LHR
1 stop12h 00m
Multiple Airlines
Deal found 18/5£664
Sun 31/514:00
LGW
-
DEN
2 stops30h 34m
Multiple Airlines
Tue 4/823:49
DEN
-
LGW
1 stop27h 11m
Multiple Airlines
Deal found 18/5£665
Thu 17/906:30
STN
-
DEN
3 stops35h 50m
Multiple Airlines
Sun 20/916:40
DEN
-
STN
3 stops23h 45m
Multiple Airlines
Deal found 19/5£665

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 22 May 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 22 May 2026.

Return from

£660

One-way from

£430

Popular in

July

Cheapest in

September

Average price

£624

Good round-trip deal

£771 or less

Good one-way deal

£692 or less
Lufthansa
  • Lufthansa
  • 4/9-17/9
  • 2 total stops
  • 30h 05m total
  • London to Denver
15/6
  • 15/6
  • 3 total stops
  • 24h 00m total
  • London to Colorado
Highest demand for flights based on searches. 8% potential increase in price (£52 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (£10 potential savings vs. average return price).
Average for return flights in May 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 22 May 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
Fastest return journey

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Wed 23/9

07:30-13:35

1 stop13h 05m

Denver Intl

Sat 3/10

20:25-12:25

Nonstop9h 00m

£675

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Tue 30/6

21:25-12:40

1 stop22h 15m

Denver Intl

Sat 4/7

20:10-11:55

1 stop32h 45m

£680

LondonDenver

LGW - DEN

LGWDEN

London Gatwick

Tue 22/9

10:35-22:49

2 stops19h 14m

Denver Intl

Thu 1/10

10:45-16:00

2 stops22h 15m

£695

LondonDenver

LGW - DEN

LGWDEN

London Gatwick

Tue 22/9

10:35-23:45

2 stops20h 10m

Denver Intl

Tue 6/10

13:35-16:00

2 stops19h 25m

£695

LondonDenver

LTN - DEN

LTNDEN

London Luton

Mon 1/6

08:50-23:10

3 stops21h 20m

Denver Intl

Sun 7/6

12:15-22:55

2 stops27h 40m

£703

LondonDenver

LTN - DEN

LTNDEN

London Luton

Thu 30/7

07:05-11:20

3 stops35h 15m

Denver Intl

Mon 3/8

16:40-20:55

2 stops21h 15m

£706

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Sun 6/9

06:30-15:31

2 stops16h 01m

Denver Intl

Thu 17/9

12:45-13:05

2 stops17h 20m

£710

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Fri 16/10

06:40-22:43

2 stops23h 03m

Denver Intl

Sun 25/10

13:35-18:30

2 stops22h 55m

£732

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Tue 8/9

06:40-22:49

3 stops23h 09m

Denver Intl

Wed 16/9

06:30-17:40

2 stops28h 10m

£737

LondonDenver

LTN - DEN

LTNDEN

London Luton

Mon 22/6

05:55-11:20

3 stops36h 25m

Denver Intl

Mon 6/7

11:25-11:00

2 stops16h 35m

£742

Flights are sorted by cheapest return flights first.

Deals found on 20/5

Showing 1-10 of 32 resultsSorted by cheapest first
1
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3
4

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 21 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 50 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 22 May 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 22 May 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.

Food

6.8

Overall

7.6

Entertainment

6.8

Boarding

7.6

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.

Food

6.8

Overall

7.6

Entertainment

6.8

Boarding

7.6

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.

Food

6.8

Overall

7.6

Entertainment

6.8

Boarding

7.6

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.

Food

6.8

Overall

7.6

Entertainment

6.8

Boarding

7.6

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.

Food

6.8

Overall

7.6

Entertainment

6.8

Boarding

7.6

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.

Food

6.8

Overall

7.6

Entertainment

6.8

Boarding

7.6

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were 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 £45, while return flights cost around £19.

  • How much is a return flight to Colorado?

    A return flight to Colorado will typically cost around £150, however they can be found for as little as £19.

  • 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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