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$566+ 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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DEN
Jul 5 — Jul 121
Sat 7/5
Sat 7/12
1 adult, Economy
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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 June 30, 2025.

Round-trip from

$586
(oojo)

One-way from

$566
(Kiwi.com)

Popular in

August

Cheapest in

September

Average price

$825

Good round-trip deal

$840 or less

Good one-way deal

$690 or less
From London Heathrow to Colorado
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One-way flight from London Heathrow to Colorado
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Highest demand for flights based on searches. 11% potential increase in price ($104 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from London Heathrow to Colorado.
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Price to beat on a one-way flight from London Heathrow to Colorado.
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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 June 30, 2025.

This oojo deal was found by Cheapflights users on 6/28. 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.
Sun 8/319:25 pmLHR - DEN
1 stop22h 05mIcelandair
Tue 9/94:40 pmDEN - LHR
1 stop20h 40mIcelandair
Deal found 6/28$586
This United Airlines deal was found by Cheapflights users on 6/28. 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 10/118:30 amLHR - DEN
1 stop14h 54mUnited Airlines
Sat 10/119:28 pmDEN - LHR
1 stop30h 42mUnited Airlines
Deal found 6/28$627
This TravelUp deal was found by Cheapflights users on 6/29. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/128:40 amLHR - DEN
1 stop14h 40mMultiple Airlines
Sat 9/205:35 pmDEN - LHR
Nonstop9h 05mMultiple Airlines
Deal found 6/29$629
This ChecknFly deal was found by Cheapflights users on 6/28. 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 ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/157:25 amLHR - DEN
1 stop13h 20mLufthansa
Mon 9/295:35 pmDEN - LHR
Nonstop9h 05mLufthansa
Deal found 6/28$632
This Air Canada deal was found by Cheapflights users on 6/28. 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 9/108:40 amLHR - DEN
2 stops18h 14mAir Canada
Wed 9/249:40 amDEN - LHR
1 stop16h 55mAir Canada
Deal found 6/28$652
This Netflights deal was found by Cheapflights users on 6/28. 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 10/61:35 pmLHR - DEN
Nonstop9h 50mBritish Airways
Fri 10/1712:20 pmDEN - LHR
1 stop11h 30mBritish Airways
Deal found 6/28$661
This TravelUp deal was found by Cheapflights users on 6/30. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3011:25 amLHR - DEN
Nonstop9h 35mAustrian Airlines
Sat 9/135:35 pmDEN - LHR
Nonstop9h 05mAustrian Airlines
Deal found 6/30$667
This American Airlines deal was found by Cheapflights users on 6/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/810:35 amLHR - DRO
2 stops16h 39mAmerican Airlines
Tue 11/115:42 amDRO - LHR
2 stops21h 33mAmerican Airlines
Deal found 6/29$975
This United Airlines deal was found by Cheapflights users on 6/29. 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 11/278:45 amLHR - COS
2 stops19h 22mUnited Airlines
Mon 12/19:30 amCOS - LHR
2 stops14h 40mUnited Airlines
Deal found 6/29$984
This Lufthansa deal was found by Cheapflights users on 6/29. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/89:30 amLHR - DRO
2 stops18h 04mLufthansa
Tue 11/111:38 pmDRO - LHR
1 stop13h 02mLufthansa
Deal found 6/29$986
This Lufthansa deal was found by Cheapflights users on 6/29. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/271:35 pmLHR - COS
1 stop15h 12mLufthansa
Mon 12/11:53 pmCOS - LHR
1 stop12h 47mLufthansa
Deal found 6/29$1,017
This flugladen.de deal was found by Cheapflights users on 6/27. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/98:30 amLHR - ASE
1 stop20h 14mLufthansa
Sat 8/163:23 pmASE - LHR
1 stop11h 17mLufthansa
Deal found 6/27$1,263

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 June 30, 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

Sun 8/31

9:25 pm-12:30 pm

1 stop22h 05m

Denver Intl

Tue 9/9

4:40 pm-8:20 pm

1 stop20h 40m

$586

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Sat 10/11

8:30 am-4:24 pm

1 stop14h 54m

Denver Intl

Sat 10/11

9:28 pm-11:10 am

1 stop30h 42m

$627

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Fri 9/12

8:40 am-4:20 pm

1 stop14h 40m

Denver Intl

Sat 9/20

5:35 pm-9:40 am

Nonstop9h 05m

$629

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Mon 9/15

7:25 am-1:45 pm

1 stop13h 20m

Denver Intl

Mon 9/29

5:35 pm-9:40 am

Nonstop9h 05m

$632

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Wed 9/10

8:40 am-7:54 pm

2 stops18h 14m

Denver Intl

Wed 9/24

9:40 am-9:35 am

1 stop16h 55m

$652

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Mon 10/6

1:35 pm-4:25 pm

Nonstop9h 50m

Denver Intl

Fri 10/17

12:20 pm-6:50 am

1 stop11h 30m

$661

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Sat 8/30

11:25 am-2:00 pm

Nonstop9h 35m

Denver Intl

Sat 9/13

5:35 pm-9:40 am

Nonstop9h 05m

$667

LondonDurango

LHR - DRO

LHRDRO

London Heathrow

Sat 11/8

10:35 am-8:14 pm

2 stops16h 39m

Durango La Plata County

Tue 11/11

5:42 am-10:15 am

2 stops21h 33m

$975

LondonColorado Springs

LHR - COS

LHRCOS

London Heathrow

Thu 11/27

8:45 am-9:07 pm

2 stops19h 22m

Colorado Springs

Mon 12/1

9:30 am-7:10 am

2 stops14h 40m

$984

LondonDurango

LHR - DRO

LHRDRO

London Heathrow

Sat 11/8

9:30 am-8:34 pm

2 stops18h 04m

Durango La Plata County

Tue 11/11

1:38 pm-9:40 am

1 stop13h 02m

$986

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 39 results
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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 June 30, 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 June 30, 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 June 30, 2025.
Get a feel of what it's like to fly with Delta, KLM, and Austrian Airlines 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.
Delta
8.0
Very good
7,973 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,973 reviews
Delta
8.0
Very good
7,973 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,365 reviews
Delta
8.0
Very good
7,973 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
807 reviews
Delta
8.0
Very good
7,973 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,471 reviews
Delta
8.0
Very good
7,973 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,852 reviews
Delta
8.0
Very good
7,973 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • 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 Icelandair ($566), Aer Lingus ($568), and British Airways ($678).

  • 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 - Colorado Springs and London Heathrow - Durango La Plata County.

  • 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 (80%), Air Canada (78%), Brussels Airlines (78%).

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

    Looking at all options, your cheapest flight can be booked for $591. While the most popular route (London Heathrow - Denver Intl) can be booked for $537 on average our data indicates $1,145 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

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Alternative routes for Heathrow to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
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Heathrow to Newark flights
Gatwick to John F Kennedy Intl flights
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Gatwick to LaGuardia flights
London City to Newark flights
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Stansted to Newark flights
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Gatwick to O'Hare Intl flights
London City to O'Hare Intl flights

Top 7 airlines flying from Heathrow to Colorado

Discover the top 7 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 June 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$475Average$631FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$599Average$913FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$603Average$837FlexibilityNo cancel feeOn-time69%
IberiaCheapest$624Average$907FlexibilityNo cancel feeOn-time77%
DeltaCheapest$628Average$717FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$648Average$790FlexibilityNo cancel feeOn-time76%
Austrian AirlinesCheapest$671Average$915FlexibilityNo cancel feeOn-time78%

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