£205 Find Cheap Flights from Colorado to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Heathrow departing on 2/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Colorado to Heathrow

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Colorado to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Colorado to Heathrow

Mon, 9 Nov - Thu, 12 Nov
United Airlines Logo
18:35 - 09:40
COS
-
LHR
32h 05m
1 stop
United Airlines Logo
07:30 - 16:30
LHR
-
COS
16h 00m
2 stops
£629United Airlines
Wed, 11 Nov - Wed, 18 Nov
Lufthansa Logo
13:15 - 09:40
DRO
-
LHR
13h 25m
1 stop
Lufthansa Logo
06:35 - 20:40
LHR
-
DRO
21h 05m
2 stops
£640Lufthansa
Mon, 24 Aug - Wed, 2 Sep
Lufthansa Logo
15:12 - 12:25
GJT
-
LHR
14h 13m
1 stop
Lufthansa Logo
06:30 - 17:31
LHR
-
GJT
18h 01m
2 stops
£648Lufthansa
Mon, 5 Oct - Mon, 2 Nov
Virgin Atlantic Logo
13:19 - 11:20
COS
-
LHR
15h 01m
1 stop
Virgin Atlantic Logo
20:25 - 17:14
LHR
-
COS
27h 49m
2 stops
£651Virgin Atlantic
Sat, 19 Sep - Sat, 3 Oct
Air Canada Logo
18:10 - 06:35
DEN
-
LHR
29h 25m
1 stop
Air Canada Logo
06:50 - 20:17
LHR
-
DEN
20h 27m
2 stops
£661Air Canada
Mon, 2 Nov - Tue, 10 Nov
Air Canada Logo
07:32 - 08:30
DEN
-
LHR
17h 58m
2 stops
Air Canada Logo
14:30 - 12:08
LHR
-
DEN
28h 38m
1 stop
£662Air Canada
Sat, 15 Aug - Fri, 21 Aug
Scandinavian Airlines Logo
06:40 - 16:00
DEN
-
LHR
26h 20m
2 stops
Scandinavian Airlines Logo
07:05 - 22:45
LHR
-
DEN
22h 40m
2 stops
£662Scandinavian Airlines
Sat, 19 Sep - Tue, 6 Oct
Delta Logo
07:15 - 07:10
DEN
-
LHR
16h 55m
2 stops
Delta Logo
06:30 - 15:56
LHR
-
DEN
16h 26m
2 stops
£663Delta
Fri, 9 Oct - Fri, 16 Oct
Delta Logo
10:30 - 08:50
DEN
-
LHR
15h 20m
2 stops
Delta Logo
06:30 - 15:56
LHR
-
DEN
16h 26m
2 stops
£664Delta
Wed, 9 Sep - Tue, 15 Sep
Scandinavian Airlines Logo
06:30 - 09:35
DEN
-
LHR
20h 05m
2 stops
Scandinavian Airlines Logo
07:05 - 22:35
LHR
-
DEN
22h 30m
3 stops
£665Scandinavian Airlines
Useful Info

Good to know - Cheap tickets from Colorado to London Heathrow Airport

Low seasonJanuary
Cheapest flight£205
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly (12% more expensive on average)
Flight from Denver to London Heathrow Airport

Flights from Colorado to Heathrow: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from Colorado to Heathrow 
Learn how KAYAK collects reviews and tips from users.
DarleneFlew with British Airways
DEN
-
LHR
Mar 2026
Plan on a crazy, crowded experience in terminal 3! Find a resturarant to camp in to remove yourself from the pandamonium
Verified travelerFlew with British Airways
DEN
-
LHR
Dec 2025
Jst take one cashing bag no checked luggage-so much easier
TressaFlew with Lufthansa
DEN
-
LHR
Dec 2024
Make your layover longer because you will need it for all the walking at Heathrow
Verified travelerFlew with Iberia
DEN
-
LHR
Sept 2024
Coming from Denver with London as a layover you will have to go through security again

FAQs for booking Colorado to London Heathrow Airport flights

  • How does KAYAK find such low prices on flights from Colorado to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Colorado to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Colorado to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Colorado is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Colorado to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back to Colorado with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Colorado to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Travelling to a place near Heathrow?

Book flights to Heathrow if you plan to visit one of these locations
Gatwick
Milton Keynes
Eastbourne
Hounslow
Luton
Southend-on-Sea
Northampton
Swindon
Slough
Winchester
Stansted
Croydon
Folkestone
Poole
Chichester
Colchester
Maidstone
Salisbury
Chelmsford
Crawley

Everything you need to know for your flight to Heathrow

Information on your arrival and departure airports

London Heathrow Airport (LHR)