£300 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 15/7. 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

Tue, 21 Apr - Tue, 5 May
Icelandair Logo
16:40 - 11:55
DEN
-
LHR
12h 15m
1 stop
Icelandair Logo
13:05 - 19:00
LHR
-
DEN
12h 55m
1 stop
£513Icelandair
Tue, 4 Aug - Wed, 26 Aug
Icelandair Logo
20:10 - 20:20
DEN
-
LHR
17h 10m
1 stop
Icelandair Logo
13:05 - 19:00
LHR
-
DEN
12h 55m
1 stop
£549Icelandair
Sat, 25 Apr - Sun, 3 May
Turkish Airlines Logo
20:25 - 22:25
DEN
-
LHR
19h 00m
1 stop
Turkish Airlines Logo
06:30 - 18:25
LHR
-
DEN
18h 55m
1 stop
£563Turkish Airlines
Thu, 16 Apr - Sun, 19 Apr
Turkish Airlines Logo
20:25 - 21:05
DEN
-
LHR
17h 40m
1 stop
Turkish Airlines Logo
06:30 - 18:25
LHR
-
DEN
18h 55m
1 stop
£564Turkish Airlines
Sun, 20 Sep - Wed, 23 Sep
United Airlines Logo
17:05 - 09:40
COS
-
LHR
33h 35m
1 stop
United Airlines Logo
09:30 - 17:51
LHR
-
COS
15h 21m
2 stops
£640United Airlines
Sun, 20 Sep - Wed, 23 Sep
United Airlines Logo
18:32 - 09:40
COS
-
LHR
32h 08m
1 stop
United Airlines Logo
07:30 - 17:51
LHR
-
COS
17h 21m
2 stops
£641United Airlines
Wed, 12 Aug - Wed, 26 Aug
Iberia Logo
17:13 - 14:25
COS
-
LHR
14h 12m
1 stop
Iberia Logo
09:15 - 22:57
LHR
-
COS
20h 42m
2 stops
£658Iberia
Wed, 12 Aug - Wed, 26 Aug
Iberia Logo
17:13 - 14:25
COS
-
LHR
14h 12m
1 stop
Iberia Logo
11:30 - 22:57
LHR
-
COS
18h 27m
2 stops
£659Iberia
Tue, 1 Sep - Tue, 8 Sep
Multiple Airlines Logo
05:30 - 06:30
GJT
-
LHR
18h 00m
2 stops
Multiple Airlines Logo
06:55 - 20:36
LHR
-
GJT
20h 41m
2 stops
£665Multiple Airlines
Tue, 1 Sep - Tue, 8 Sep
Multiple Airlines Logo
05:30 - 06:35
GJT
-
LHR
18h 05m
3 stops
Multiple Airlines Logo
17:40 - 12:28
LHR
-
GJT
25h 48m
2 stops
£682Multiple Airlines
Useful Info

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

Low seasonJanuary
Cheapest flight£300
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly (5% more expensive on average)
Flight from Colorado Springs 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
Croydon
Stansted
Folkestone
Poole
Chichester
Maidstone
Colchester
Salisbury
Chelmsford
Crawley

Everything you need to know for your flight to Heathrow

Information on your arrival and departure airports

London Heathrow Airport (LHR)