S$1,242 Cheap Flights from London to Denver

View S$1,242 flight on Tue, 5 May, 2026Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Denver Intl. Airport (DEN)

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Cheap Flights from London to Denver (LHR-DEN)

Prices were available within the past 7 days and start at S$1,242 for one-way flights and S$863 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Sat, 30 Aug - Sat, 13 Sep
LHR
London
DEN
Denver
S$863 Return, found 1 day ago
S$863
Return
found 1 day ago
Select Lufthansa flight, departing Sat, 30 Aug from London to Denver, returning Sat, 13 Sep, priced at S$863 found 1 day ago
Air Canada
Sat, 30 Aug - Sat, 13 Sep
LHR
London
DEN
Denver
S$871 Return, found 1 day ago
S$871
Return
found 1 day ago
Select Air Canada flight, departing Sat, 30 Aug from London to Denver, returning Sat, 13 Sep, priced at S$871 found 1 day ago
Virgin Atlantic
Thu, 7 May - Wed, 13 May
LHR
London
DEN
Denver
S$879 Return, found 1 day ago
S$879
Return
found 1 day ago
Select Virgin Atlantic flight, departing Thu, 7 May from London to Denver, returning Wed, 13 May, priced at S$879 found 1 day ago
Delta
Thu, 7 May - Wed, 13 May
LHR
London
DEN
Denver
S$879 Return, found 1 day ago
S$879
Return
found 1 day ago
Select Delta flight, departing Thu, 7 May from London to Denver, returning Wed, 13 May, priced at S$879 found 1 day ago
Lufthansa
Sat, 30 Aug - Sat, 13 Sep
LHR
London
DEN
Denver
S$882 Return, found 1 day ago
S$882
Return
found 1 day ago
Select Lufthansa flight, departing Sat, 30 Aug from London to Denver, returning Sat, 13 Sep, priced at S$882 found 1 day ago
Air Canada
Sat, 30 Aug - Sat, 13 Sep
LHR
London
DEN
Denver
S$890 Return, found 1 day ago
S$890
Return
found 1 day ago
Select Air Canada flight, departing Sat, 30 Aug from London to Denver, returning Sat, 13 Sep, priced at S$890 found 1 day ago
Austrian Airlines
Sat, 30 Aug - Sat, 13 Sep
LHR
London
DEN
Denver
S$892 Return, found 1 day ago
S$892
Return
found 1 day ago
Select Austrian Airlines flight, departing Sat, 30 Aug from London to Denver, returning Sat, 13 Sep, priced at S$892 found 1 day ago
United
Sat, 30 Aug - Sat, 13 Sep
LHR
London
DEN
Denver
S$892 Return, found 1 day ago
S$892
Return
found 1 day ago
Select United flight, departing Sat, 30 Aug from London to Denver, returning Sat, 13 Sep, priced at S$892 found 1 day ago
American Airlines
Sat, 30 Aug - Sat, 13 Sep
LHR
London
DEN
Denver
S$892 Return, found 1 day ago
S$892
Return
found 1 day ago
Select American Airlines flight, departing Sat, 30 Aug from London to Denver, returning Sat, 13 Sep, priced at S$892 found 1 day ago
American Airlines
Thu, 4 Sep - Wed, 10 Sep
LHR
London
DEN
Denver
S$895 Return, found 6 days ago
S$895
Return
found 6 days ago
Select American Airlines flight, departing Thu, 4 Sep from London to Denver, returning Wed, 10 Sep, priced at S$895 found 6 days ago

Find the cheapest month to fly from London (LHR) to Denver (DEN)

February is typically the cheapest month to fly

From S$643 - S$1,284 per traveller.

Graph displaying average flight prices per month

London to Denver route information
Origin airport
Heathrow
Destination airport
Denver Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Delta, Finnair, Iberia, KLM, Lufthansa, Turkish Airlines, United, Virgin Atlantic
Return price
S$862
Distance
7454 km
Average flight time
2 hours 43 mins

Perfect flights from London to Denver

Your Journey from London to Denver

Start your unforgettable journey with Expedia. Our broad selection of flights from London to Denver caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Lufthansa, Air Canada, Virgin Atlantic, Delta, Austrian Airlines, United, American Airlines. Our selection of flights from Heathrow to Denver Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with London to Denver Flights

Experience the joy of finding cheap flights from Heathrow to Denver Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$1,242 and roundtrip prices from S$863*.
 

Pre-Flight Essentials

Ensure a smooth journey from London to Denver with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Denver

Picture yourself stepping off the plane in Denver and immersing yourself in the unique atmosphere of Denver. From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your London to Denver Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from London to Denver.
 

Beyond the Flight – Exploring Denver

With Expedia, your adventure extends beyond the flight. Explore Denver at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from London to Denver with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from London to Denver with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from LHR to DIA airport?
Round-trip tickets between Heathrow Airport (LHR) and Denver Intl. Airport (DEN) start from S$863. This figure is based on fares advertised within the last 7 days on Expedia for flights departing within the next year — book ASAP to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from LHR to DEN?
The majority of flights can be cancelled online, but each air carrier has its own set of terms and conditions. If you do decide to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from London Heathrow to Denver Intl. Airport (DEN) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for London Heathrow to Denver Intl. Airport (DEN) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from LHR to DIA airport?
The distance is around 7,500 kilometres. Neck pillow? Check. Toiletries? Check. We recommend you pack all the essentials for this long-haul Hounslow to Denver flight.
Which airlines fly direct from Heathrow Airport (LHR) to DIA airport?
With 30 monthly flights operating from Heathrow Airport to DEN, United Airlines (UA) is a great choice. You could also check out the fares on offer with British Airways (BA). This carrier operates 30 monthly flights between Hounslow and Denver.
Are Heathrow Airport to DIA airport flight tickets cheaper when they're purchased at the last minute?
Flight prices change all the time, so it's no sure thing. While last-minute deals between Heathrow Airport (LHR) and Denver Intl. Airport (DEN) are possible, it also makes sense to keep track of prices well before you fly. In fact, some air carriers release their prices up to 12 months prior to the departure date. Expedia is continuously updating the biggest bargains around, so check back often and be ready to pounce when the price dips.

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