£401 Cheap Flights from London (LGW) to Denver (DEN)

View £401 flight on Tue, 6 Oct 2026Opens in a new window

Flight 1

Popular airlines from Gatwick Airport (LGW) to Denver International Airport (DEN)

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

Prices were available within the past 7 days and start at £401 for one-way flights and £608 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Mon, 15 Mar - Mon, 22 Mar
LGW
London
DEN
Denver
£608 Return, found 2 days ago
£608
Return
found 2 days ago
Select Icelandair flight, departing Mon, 15 Mar from London to Denver, returning Mon, 22 Mar, priced at £608 found 2 days ago
Icelandair
Tue, 6 Oct - Tue, 13 Oct
LGW
London
DEN
Denver
£609 Return, found 1 day ago
£609
Return
found 1 day ago
Select Icelandair flight, departing Tue, 6 Oct from London to Denver, returning Tue, 13 Oct, priced at £609 found 1 day ago
Icelandair
Tue, 6 Oct - Thu, 15 Oct
LGW
London
DEN
Denver
£609 Return, found 3 days ago
£609
Return
found 3 days ago
Select Icelandair flight, departing Tue, 6 Oct from London to Denver, returning Thu, 15 Oct, priced at £609 found 3 days ago
Icelandair
Mon, 8 Mar - Mon, 15 Mar
LGW
London
DEN
Denver
£625 Return, found 1 day ago
£625
Return
found 1 day ago
Select Icelandair flight, departing Mon, 8 Mar from London to Denver, returning Mon, 15 Mar, priced at £625 found 1 day ago
Icelandair
Mon, 2 Nov - Tue, 10 Nov
LGW
London
DEN
Denver
£625 Return, found 3 days ago
£625
Return
found 3 days ago
Select Icelandair flight, departing Mon, 2 Nov from London to Denver, returning Tue, 10 Nov, priced at £625 found 3 days ago
Icelandair
Mon, 8 Mar - Mon, 22 Mar
LGW
London
DEN
Denver
£626 Return, found 2 days ago
£626
Return
found 2 days ago
Select Icelandair flight, departing Mon, 8 Mar from London to Denver, returning Mon, 22 Mar, priced at £626 found 2 days ago
Swiss International Air Lines
Tue, 1 Sept - Tue, 15 Sept
LGW
London
DEN
Denver
£662 Return, found 1 hour ago
£662
Return
found 1 hour ago
Select Swiss International Air Lines flight, departing Tue, 1 Sept from London to Denver, returning Tue, 15 Sept, priced at £662 found 1 hour ago
American Airlines
Mon, 14 Sept - Sun, 27 Sept
LGW
London
DEN
Denver
£663 Return, found 10 hours ago
£663
Return
found 10 hours ago
Select American Airlines flight, departing Mon, 14 Sept from London to Denver, returning Sun, 27 Sept, priced at £663 found 10 hours ago
JetBlue Airways
Tue, 16 Jun - Wed, 22 Jul
LGW
London
DEN
Denver
£679 Return, found 2 days ago
£679
Return
found 2 days ago
Select JetBlue Airways flight, departing Tue, 16 Jun from London to Denver, returning Wed, 22 Jul, priced at £679 found 2 days ago
Air France
Mon, 14 Sept - Sun, 27 Sept
LGW
London
DEN
Denver
£692 Return, found 10 hours ago
£692
Return
found 10 hours ago
Select Air France flight, departing Mon, 14 Sept from London to Denver, returning Sun, 27 Sept, priced at £692 found 10 hours ago

Alternative airports near Denver

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Denver Intl. DEN. Cheapest option available. Average driving time to city centre is 32 minutes. Flights from £1,068
DEN
Denver Intl.
Cheapest
Average driving time to city centre32 min
Flights from £1,068

Frequently asked questions

How do I find cheap flights from London (LGW-Gatwick) to Denver, CO (DEN-Denver Intl.)?
To find a cheap flight from London (LGW-Gatwick) to Denver, CO (DEN-Denver Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from London (LGW-Gatwick) to Denver, CO (DEN-Denver Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from London (LGW-Gatwick) to Denver, CO (DEN-Denver Intl.)?
There are approximately 17 connecting flights per day from London (LGW-Gatwick) (LGW) to Denver, CO (DEN-Denver Intl.) (DEN). Some common connection points include Roissy-Charles de Gaulle (CDG), (ZRH), and Keflavik Intl. (KEF).
What is the earliest flight from London (LGW-Gatwick) to Denver, CO (DEN-Denver Intl.)?
The earliest flight from London Gatwick (LGW) to Denver, CO (DEN-Denver Intl.) (DEN) typically departs at approximately 3:35 AM local time. This service is operated by Air Canada and is seasonal, active only in December. An early departure like this can help you maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from London (LGW-Gatwick) to Denver, CO (DEN-Denver Intl.)?
You'll typically find the most flights from London Gatwick (LGW) to Denver, CO (DEN) on a Tuesday, with around 38 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include British Airways and Lufthansa. Looking at the overall week, Tuesdays offer notably more flight options compared to other days.
What are the most popular departure times for flights from London (LGW-Gatwick) to Denver, CO (DEN-Denver Intl.)?
The most popular departure times for flights from London Gatwick (LGW) to Denver, CO (DEN) are between 12pm and 3pm. Approximately 39% of passengers prefer this time window. Many major carriers, including British Airways, American Airlines and Air Canada, offer flights during this window. This timing works well because it allows for a morning in London and an afternoon arrival in Denver, giving you time to settle in.
How long does it take to fly from London (LGW-Gatwick) to Denver, CO (DEN-Denver Intl.)?
Flights from LGW to DEN with one stop typically take around 17 hours 30 minutes, covering approximately 4,682 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from London (LGW-Gatwick) to Denver, CO (DEN-Denver Intl.)?
Select the "Business class" and "First class" filters when looking for LGW to DEN flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a London (LGW-Gatwick) to Denver, CO (DEN-Denver Intl.) flight with Expedia?
It's easy to earn miles on a London (LGW-Gatwick) to Denver, CO (DEN-Denver Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Denver from Gatwick (LGW)?
If you're planning to travel to Denver from Gatwick (LGW), you can fly into Denver Intl. (DEN) Some flights may connect through major hubs like Tampa Intl. (TPA), Adolfo Suarez Madrid-Barajas (MAD), Orlando Intl. (MCO) before reaching Denver. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from London (LGW-Gatwick) to Denver, CO (DEN-Denver Intl.) at the last minute?
Typically, booking a last minute flight from London (LGW-Gatwick) to Denver, CO (DEN-Denver Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a London (LGW-Gatwick) to Denver, CO (DEN-Denver Intl.) flight and hotel package?
Securing a London (LGW-Gatwick) to Denver, CO (DEN-Denver Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from London (LGW-Gatwick) to Denver, CO (DEN-Denver Intl.)?
If you booked your London (LGW-Gatwick) to Denver, CO (DEN-Denver Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Gatwick
Destination airport
Denver Intl.
Airlines serving
Air Europa, Air France, American Airlines, British Airways, Delta, Iberia, Icelandair, JetBlue Airways, KLM, Swiss International Air Lines, TAP Portugal, Turkish Airlines, Virgin Atlantic
Return price
£607
Distance
7490 km

Book with confidence

Compare flights from London to Denver easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from London to Denver. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Denver Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Gatwick to Denver Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Gatwick (LGW) to Denver Intl. (DEN)

The easiest way to view the best deals on flights from London to Denver today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Gatwick to Denver Intl. start at just £608 and range up to £692.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near London and Denver
  • booking your flight during March, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your London to Denver flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Gatwick to Denver Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from London to Denver easily and book with confidence

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