HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Colorado

$626+ Cheap flights from Heathrow (LHR) 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DEN
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Heathrow to Colorado with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Heathrow to Colorado

Keep the following information in mind while searching for Heathrow to Colorado flight deals. Data was last updated August 18, 2025.

Round-trip from

$641
(Netflights)

One-way from

$626
(Cheapflightsfares)

Popular in

August

Cheapest in

September

Average price

$953

Good round-trip deal

$677 or less

Good one-way deal

$724 or less
From London Heathrow to Colorado
Search Deals
One-way flight from London Heathrow to Colorado
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($71 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals
Price to beat on a round-trip flight from London Heathrow to Colorado.
Search Deals
Price to beat on a one-way flight from London Heathrow to Colorado.
Search Deals

Find flight deals from Heathrow to Colorado

Cheapest flights from Heathrow to Colorado
Explore the most affordable flight options available from Heathrow to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This Netflights deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/221:35 pmLHR - DEN
Nonstop9h 50mBritish Airways
Tue 9/3010:31 amDEN - LHR
1 stop12h 54mBritish Airways
Deal found 8/17$641
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/116:55 amLHR - DEN
1 stop13h 50mUnited Airlines
Tue 9/308:20 pmDEN - LHR
Nonstop9h 00mUnited Airlines
Deal found 8/18$642
This Netflights deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/101:35 pmLHR - DEN
Nonstop9h 50mBritish Airways
Wed 9/242:17 pmDEN - LHR
1 stop11h 53mBritish Airways
Deal found 8/16$643
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/106:30 amLHR - DEN
1 stop14h 05mUnited Airlines
Wed 9/248:20 pmDEN - LHR
Nonstop9h 00mUnited Airlines
Deal found 8/18$644
This Air Canada deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/178:40 amLHR - DEN
2 stops19h 43mAir Canada
Wed 9/247:45 amDEN - LHR
2 stops15h 45mAir Canada
Deal found 8/17$645
This Gotogate deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/239:25 pmLHR - DEN
1 stop22h 05mIcelandair
Sun 9/214:40 pmDEN - LHR
1 stop12h 15mIcelandair
Deal found 8/17$646
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/67:25 amLHR - DEN
1 stop13h 20mUnited Airlines
Wed 10/17:45 amDEN - LHR
1 stop16h 55mUnited Airlines
Deal found 8/18$647
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2612:15 pmLHR - DEN
1 stop12h 50mIcelandair
Fri 4/104:40 pmDEN - LHR
1 stop12h 15mIcelandair
Deal found 8/18$648
This Trip.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/126:55 amLHR - DEN
1 stop13h 50mUnited Airlines
Sat 9/2711:59 pmDEN - LHR
1 stop13h 41mUnited Airlines
Deal found 8/18$649
This FlightHub deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2512:15 pmLHR - DEN
1 stop12h 50mIcelandair
Sat 4/114:40 pmDEN - LHR
1 stop12h 15mIcelandair
Deal found 8/18$650
This Air Canada deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/128:40 amLHR - DEN
2 stops18h 14mAir Canada
Sat 9/2011:25 amDEN - LHR
1 stop12h 10mAir Canada
Deal found 8/17$651
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/16:50 amLHR - DEN
2 stops17h 57mUnited Airlines
Wed 10/87:45 amDEN - LHR
1 stop16h 55mUnited Airlines
Deal found 8/17$652

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow to Colorado 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 2,558,603 searches. Data last updated August 18, 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Colorado that are best for you.

Fly from

Heathrow

Fly to

Colorado

Route

Depart

Return

Price

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Wed 10/8

1:35 pm-4:25 pm

Nonstop9h 50m

Denver Intl

Wed 10/15

12:36 pm-9:00 am

1 stop13h 24m

$641

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Thu 10/2

1:35 pm-4:25 pm

Nonstop9h 50m

Denver Intl

Sun 10/5

10:32 am-6:25 am

1 stop12h 53m

$641

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Mon 9/22

1:35 pm-4:25 pm

Nonstop9h 50m

Denver Intl

Tue 9/30

10:31 am-6:25 am

1 stop12h 54m

$641

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Sat 8/30

6:55 am-1:45 pm

1 stop13h 50m

Denver Intl

Tue 9/9

8:20 pm-12:20 pm

Nonstop9h 00m

$642

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Sun 8/24

7:25 am-1:45 pm

1 stop13h 20m

Denver Intl

Tue 9/9

5:35 pm-9:40 am

Nonstop9h 05m

$642

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Fri 8/29

7:25 am-1:45 pm

1 stop13h 20m

Denver Intl

Mon 9/15

8:20 pm-12:20 pm

Nonstop9h 00m

$642

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Wed 8/27

7:25 am-1:45 pm

1 stop13h 20m

Denver Intl

Sat 9/13

5:00 pm-11:45 am

1 stop11h 45m

$642

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Thu 9/11

6:55 am-1:45 pm

1 stop13h 50m

Denver Intl

Tue 9/30

9:40 am-6:30 am

1 stop13h 50m

$642

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Mon 8/25

7:25 am-1:45 pm

1 stop13h 20m

Denver Intl

Fri 9/12

11:40 am-10:25 am

1 stop15h 45m

$642

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Thu 9/4

7:25 am-1:45 pm

1 stop13h 20m

Denver Intl

Wed 9/10

8:20 pm-12:20 pm

Nonstop9h 00m

$642

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 44 results
1
2
3
...
5

Best time to book a flight from Heathrow to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado from Heathrow with our price prediction graph.
Estimated round-trip 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 London Heathrow Airport to Colorado

What is the cheapest month to book a flight from London Heathrow Airport to Colorado?

Currently, October is the cheapest month in which you can book a flight from London Heathrow Airport to Colorado (average of $197). Flying from London Heathrow Airport to Colorado in March is currently the most expensive (average of $278). 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 LHR to CO?

Find hourly flight availability from Heathrow to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

When flying from London Heathrow Airport to Colorado, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from London Heathrow Airport to Colorado

Explore weekly flight availability from Heathrow to Colorado. 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 August 18, 2025.

The most flights from LHR to USCO 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).

How much does it cost to fly round-trip from London Heathrow Airport to Colorado?

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 August 18, 2025.
Get a feel of what it's like to fly with Austrian Airlines, United Airlines, and Iberia from London Heathrow Airport to Colorado by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
829 reviews

Boarding

7.6

Comfort

7.3

Entertainment

6.8

Overall

7.6

Food

6.8

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Austrian Airlines
7.6
Good
829 reviews
Austrian Airlines
7.6
Good
829 reviews

Boarding

7.6

Comfort

7.3

Entertainment

6.8

Overall

7.6

Food

6.8

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
United Airlines
7.4
Good
8,925 reviews
Austrian Airlines
7.6
Good
829 reviews

Boarding

7.6

Comfort

7.3

Entertainment

6.8

Overall

7.6

Food

6.8

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Iberia
7.0
Good
2,884 reviews
Austrian Airlines
7.6
Good
829 reviews

Boarding

7.6

Comfort

7.3

Entertainment

6.8

Overall

7.6

Food

6.8

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Lufthansa
6.8
Okay
7,330 reviews
Austrian Airlines
7.6
Good
829 reviews

Boarding

7.6

Comfort

7.3

Entertainment

6.8

Overall

7.6

Food

6.8

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
British Airways
6.7
Okay
7,277 reviews
Austrian Airlines
7.6
Good
829 reviews

Boarding

7.6

Comfort

7.3

Entertainment

6.8

Overall

7.6

Food

6.8

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London Heathrow Airport to Colorado?

    Airlines like British Airways, United Airlines, and Lufthansa fly from London Heathrow Airport to Colorado in about 9h 50m. The time it takes to get you to your destination can typically vary by up to 4h 33m. The distance between London Heathrow Airport and Colorado is about 4655 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from London Heathrow Airport to Colorado one-way?

    The cheapest airlines for a one-way flight from London Heathrow Airport to Colorado are Aer Lingus ($626), Icelandair ($634), and Lufthansa ($881).

  • What are the most popular routes from London Heathrow Airport to Colorado?

    The most popular flight routes from London Heathrow Airport to Colorado are London Heathrow - Denver Intl, London Heathrow - Durango La Plata County and London Heathrow - Colorado Springs.

  • What are the most reliable airlines from London Heathrow Airport to Colorado?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London Heathrow Airport to Colorado on time: Austrian Airlines (72%), Air Canada (72%), Brussels Airlines (72%).

  • What are the cheapest flights from London Heathrow Airport to Colorado?

    Looking at all options, your cheapest flight can be booked for $663. While the most popular route (London Heathrow - Denver Intl) can be booked for $555 on average our data indicates $3,349 when flying from London Heathrow Airport to Colorado.

  • Can I find deals for flights from Heathrow to Colorado that include hotel bookings?

    Yes. In addition to deals on Heathrow to Colorado flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Colorado?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Colorado.

  • Can I find deals for business class flights from Heathrow to Colorado?

    Yes. Cheapflights offers flight deals from Heathrow to Colorado 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 London Heathrow Airport to Colorado?

    Currently, October is the cheapest month in which you can book a flight from London Heathrow Airport to Colorado (average of $197). Flying from London Heathrow Airport to Colorado in March is currently the most expensive (average of $278). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to John F Kennedy Intl flights
Heathrow to Newark flights
Gatwick to Newark flights
London City to John F Kennedy Intl flights
Stansted to John F Kennedy Intl flights
Gatwick to John F Kennedy Intl flights
Gatwick to LaGuardia flights
Stansted to Newark flights
Heathrow to LaGuardia flights
London City to Newark flights
Luton to John F Kennedy Intl flights
Luton to Newark flights
Heathrow to Los Angeles flights
Heathrow to Orlando flights
Heathrow to Boston flights
Heathrow to Miami flights
Heathrow to Dulles Intl flights
Heathrow to O'Hare Intl flights
Heathrow to Dallas/Fort Worth flights
Luton to LaGuardia flights
Heathrow to Baltimore flights
Heathrow to San Francisco flights
Heathrow to Seattle flights
Gatwick to Boston flights
Gatwick to Orlando flights
Heathrow to Las Vegas flights
London City to Los Angeles flights
Gatwick to Miami flights
Heathrow to Tampa flights
London City to Boston flights
Heathrow to Atlanta flights
London City to Miami flights
Luton to Los Angeles flights
Gatwick to Dulles Intl flights
Heathrow to Reagan-National flights
Gatwick to San Francisco flights
Gatwick to Los Angeles flights
London City to Dulles Intl flights
Gatwick to Baltimore flights
Heathrow to Hobby flights
Gatwick to O'Hare Intl flights
London City to San Francisco flights
London City to O'Hare Intl flights
Heathrow to Philadelphia flights
Heathrow to Ontario flights
Gatwick to Las Vegas flights
Heathrow to Midway flights
Gatwick to Seattle flights

Top 8 airlines flying from Heathrow to Colorado

Discover the top 8 airlines that operate flights from Heathrow to Colorado. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$475Average$625FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$599Average$841FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$603Average$812FlexibilityNo cancel feeOn-time69%
IberiaCheapest$624Average$871FlexibilityNo cancel feeOn-time77%
DeltaCheapest$628Average$717FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$648Average$767FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$660Average$811FlexibilityNo cancel feeOn-time71%
Austrian AirlinesCheapest$671Average$788FlexibilityNo cancel feeOn-time78%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.