Cheap Flights from London (LHR) to Denver (DEN)

  • Plan, book, fly with confidence
  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 35% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from London (LHR) to Denver (DEN)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Sat., 25 Jan. - Fri., 31 Jan.
LHR
London
DEN
Denver
AU$916 Return, found 21 hours ago
AU$916
Return
found 21 hours ago
Select Icelandair flight, departing Sat., 25 Jan. from London to Denver, returning Fri., 31 Jan., priced at AU$916 found 21 hours ago
Icelandair
Sat., 25 Jan. - Fri., 31 Jan.
LHR
London
DEN
Denver
AU$918 Return, found 21 hours ago
AU$918
Return
found 21 hours ago
Select Icelandair flight, departing Sat., 25 Jan. from London to Denver, returning Fri., 31 Jan., priced at AU$918 found 21 hours ago
Icelandair
Sat., 18 Jan. - Sun., 26 Jan.
LHR
London
DEN
Denver
AU$922 Return, found 5 days ago
AU$922
Return
found 5 days ago
Select Icelandair flight, departing Sat., 18 Jan. from London to Denver, returning Sun., 26 Jan., priced at AU$922 found 5 days ago
Icelandair
Mon., 13 Jan. - Mon., 27 Jan.
LHR
London
DEN
Denver
AU$924 Return, found 5 days ago
AU$924
Return
found 5 days ago
Select Icelandair flight, departing Mon., 13 Jan. from London to Denver, returning Mon., 27 Jan., priced at AU$924 found 5 days ago
United
Wed., 5 Feb. - Tue., 18 Feb.
LHR
London
DEN
Denver
AU$1,113 Return, found 2 days ago
AU$1,113
Return
found 2 days ago
Select United flight, departing Wed., 5 Feb. from London to Denver, returning Tue., 18 Feb., priced at AU$1,113 found 2 days ago
Virgin Atlantic
Mon., 13 Jan. - Mon., 27 Jan.
LHR
London
DEN
Denver
AU$1,128 Return, found 5 days ago
AU$1,128
Return
found 5 days ago
Select Virgin Atlantic flight, departing Mon., 13 Jan. from London to Denver, returning Mon., 27 Jan., priced at AU$1,128 found 5 days ago
American Airlines
Wed., 5 Feb. - Tue., 18 Feb.
LHR
London
DEN
Denver
AU$1,129 Return, found 2 days ago
AU$1,129
Return
found 2 days ago
Select American Airlines flight, departing Wed., 5 Feb. from London to Denver, returning Tue., 18 Feb., priced at AU$1,129 found 2 days ago
American Airlines
Wed., 5 Feb. - Tue., 18 Feb.
LHR
London
DEN
Denver
AU$1,129 Return, found 2 days ago
AU$1,129
Return
found 2 days ago
Select American Airlines flight, departing Wed., 5 Feb. from London to Denver, returning Tue., 18 Feb., priced at AU$1,129 found 2 days ago
Lufthansa
Wed., 5 Feb. - Tue., 18 Feb.
LHR
London
DEN
Denver
AU$1,153 Return, found 2 days ago
AU$1,153
Return
found 2 days ago
Select Lufthansa flight, departing Wed., 5 Feb. from London to Denver, returning Tue., 18 Feb., priced at AU$1,153 found 2 days ago
British Airways
Wed., 5 Feb. - Tue., 18 Feb.
LHR
London
DEN
Denver
AU$1,159 Return, found 2 days ago
AU$1,159
Return
found 2 days ago
Select British Airways flight, departing Wed., 5 Feb. from London to Denver, returning Tue., 18 Feb., priced at AU$1,159 found 2 days ago
Beautiful view of the beach with palm trees

Black Friday: Members save 30%+

Members save 30%+ on selected hotels until 4 Dec (property time) with our Black Friday deals. Stay by 15 Dec 2025.
Unlock Black Friday deals
Flight from 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, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, Turkish Airlines, United, Virgin Atlantic
Return price
AU$916
Distance
7454 km

Your quick guide to flights from London to Denver

Pick up great flights from London to Denver

With Expedia, you have your pick of flights a day with 20 airlines covering flights from London to Denver. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from London to Denver that take around hours.

Find cheap flights from London to Denver

From the great flight deals with prices currently ranging from AU$916 to AU$1,159, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from London to Denver around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Denver is normally in January.

Reasons to book your flight from London to Denver with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from London to Denver across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Denver right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

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 AU$916. 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.
London Airports

London

Gatwick to Denver
AU$908.60
*Available to Expedia members.