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£236 Cheap Flights from Denver (DEN) to London (LGW)

View £236 flight on Sat, 31 Oct 2026Opens in a new window

Flight 1

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

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

Prices were available within the past 7 days and start at £236 for one-way flights and £540 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Sun, 6 Dec - Fri, 11 Dec
DEN
Denver
LGW
London
£540 Return, found 22 hours ago
£540
Return
found 22 hours ago
Select Icelandair flight, departing Sun, 6 Dec from Denver to London, returning Fri, 11 Dec, priced at £540 found 22 hours ago
Icelandair
Thu, 29 Oct - Sun, 8 Nov
DEN
Denver
LGW
London
£542 Return, found 5 days ago
£542
Return
found 5 days ago
Select Icelandair flight, departing Thu, 29 Oct from Denver to London, returning Sun, 8 Nov, priced at £542 found 5 days ago
Icelandair
Sun, 24 Jan - Fri, 29 Jan
DEN
Denver
LGW
London
£558 Return, found 1 day ago
£558
Return
found 1 day ago
Select Icelandair flight, departing Sun, 24 Jan from Denver to London, returning Fri, 29 Jan, priced at £558 found 1 day ago
Icelandair
Tue, 27 Oct - Sun, 1 Nov
DEN
Denver
LGW
London
£562 Return, just found
£562
Return
just found
Select Icelandair flight, departing Tue, 27 Oct from Denver to London, returning Sun, 1 Nov, priced at £562 just found
Icelandair
Sat, 14 Nov - Wed, 18 Nov
DEN
Denver
LGW
London
£562 Return, found 2 days ago
£562
Return
found 2 days ago
Select Icelandair flight, departing Sat, 14 Nov from Denver to London, returning Wed, 18 Nov, priced at £562 found 2 days ago
Icelandair
Sat, 12 Dec - Fri, 8 Jan
DEN
Denver
LGW
London
£563 Return, found 4 days ago
£563
Return
found 4 days ago
Select Icelandair flight, departing Sat, 12 Dec from Denver to London, returning Fri, 8 Jan, priced at £563 found 4 days ago
American Airlines
Sun, 6 Dec - Fri, 11 Dec
DEN
Denver
LGW
London
£623 Return, found 22 hours ago
£623
Return
found 22 hours ago
Select American Airlines flight, departing Sun, 6 Dec from Denver to London, returning Fri, 11 Dec, priced at £623 found 22 hours ago
Air France
Sun, 6 Dec - Fri, 11 Dec
DEN
Denver
LGW
London
£639 Return, found 22 hours ago
£639
Return
found 22 hours ago
Select Air France flight, departing Sun, 6 Dec from Denver to London, returning Fri, 11 Dec, priced at £639 found 22 hours ago
Virgin Atlantic
Sun, 6 Dec - Fri, 11 Dec
DEN
Denver
LGW
London
£639 Return, found 22 hours ago
£639
Return
found 22 hours ago
Select Virgin Atlantic flight, departing Sun, 6 Dec from Denver to London, returning Fri, 11 Dec, priced at £639 found 22 hours ago
KLM
Wed, 30 Sept - Wed, 7 Oct
DEN
Denver
LGW
London
£655 Return, found 5 days ago
£655
Return
found 5 days ago
Select KLM flight, departing Wed, 30 Sept from Denver to London, returning Wed, 7 Oct, priced at £655 found 5 days ago

Alternative airports near London

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

Select flight to Heathrow LHR. Cheapest option available. Average driving time to city centre is 28 minutes. Flights from £740
LHR
Heathrow
Cheapest
Average driving time to city centre28 min
Flights from £740

Frequently asked questions

How much does a flight from Denver, CO (DEN-Denver Intl.) to London (LGW-Gatwick) cost?
You can find one-way and return flights from DEN to LGW with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when DEN to LGW ticket fares go up or down.
What is the cheapest month to fly from Denver, CO (DEN-Denver Intl.) to London (LGW-Gatwick)?
The cheapest months to fly from DEN to LGW are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Denver, CO (DEN-Denver Intl.) to London (LGW-Gatwick)?
Enter DEN to LGW and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Denver, CO (DEN-Denver Intl.) to London (LGW-Gatwick)?
Southwest Airlines is one of the cheapest airlines offering connecting return flights from Denver Intl. (DEN) to Gatwick (LGW), with prices starting from around £966 for flights that can be booked for departure within the next year, with a layover in Los Angeles Intl. (LAX). These prices are per adult, for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Denver, CO (DEN-Denver Intl.) to London (LGW-Gatwick)?
To find a cheap flight from Denver, CO (DEN-Denver Intl.) to London (LGW-Gatwick), 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 Denver, CO (DEN-Denver Intl.) to London (LGW-Gatwick)?
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 Denver, CO (DEN-Denver Intl.) to London (LGW-Gatwick)?
There are approximately 48 connecting flights per day from Denver, CO (DEN-Denver Intl.) to London (LGW-Gatwick). Some common connection points include John F. Kennedy Intl. (JFK), Dallas-Fort Worth Intl. (DFW), and Logan Intl. (BOS).
What is the earliest flight from Denver, CO (DEN-Denver Intl.) to London (LGW-Gatwick)?
The earliest flight from Denver International Airport (DEN) to London Gatwick (LGW) typically departs around 12:15 AM local time. This service is operated by American Airlines and Iberia Express, but it's a seasonal route, active only in November. 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 Denver, CO (DEN-Denver Intl.) to London (LGW-Gatwick)?
You'll typically find the most flights from Denver International Airport (DEN) to London Gatwick (LGW) on a Wednesday, with around 68 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include American Airlines, United, and Delta.
What are the most popular departure times for flights from Denver, CO (DEN-Denver Intl.) to London (LGW-Gatwick)?
The most popular departure times for flights from Denver, CO (DEN-Denver Intl.) to London (LGW-Gatwick) are in the morning, from 9am to 12pm. Many major carriers, including American Airlines, Delta and United, offer flights during this window. Many travellers prefer this time because it allows for an early start to your journey, getting you to your destination with plenty of time left in the day.
How long does it take to fly from Denver, CO (DEN-Denver Intl.) to London (LGW-Gatwick)?
There are no nonstop flights from Denver, CO (DEN-Denver Intl.) to London (LGW-Gatwick). If you're looking to fly this route, you'll typically find one-stop flights taking around 15 hours. Flights with two or more stops usually take longer, averaging about 18 hours 30 minutes. The distance covered is approximately 7,535 kilometres. Keep in mind that these are average travel times, and your actual flight duration can vary depending on the specific routing, layover times, and even weather conditions.
Can you fly business or first class from Denver, CO (DEN-Denver Intl.) to London (LGW-Gatwick)?
Yes, you can fly business class between DEN and LGW. Airlines that offer business class service on this route include:
  • Alaska Airlines
  • Air Canada
  • Air France
  • Lufthansa
  • Turkish Airlines
  • Delta
  • United
  • Icelandair
How do I earn miles on a Denver, CO (DEN-Denver Intl.) to London (LGW-Gatwick) flight with Expedia?
It's easy to earn miles on a Denver, CO (DEN-Denver Intl.) to London (LGW-Gatwick) 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 London (LGW) from Denver, CO (DEN)?
If you're planning to travel to London from Denver Intl. (DEN), you can fly directly into Gatwick (LGW). Some flights may connect through major hubs like Dallas-Fort Worth Intl. (DFW), Charlotte-Douglas Intl. (CLT), or O'Hare Intl. (ORD) before reaching London. 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 Denver, CO (DEN-Denver Intl.) to London (LGW-Gatwick) at the last minute?
Typically, booking a last minute flight from Denver, CO (DEN-Denver Intl.) to London (LGW-Gatwick) 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 Denver, CO (DEN-Denver Intl.) to London (LGW-Gatwick) flight and hotel package?
Securing a Denver, CO (DEN-Denver Intl.) to London (LGW-Gatwick) 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 Denver, CO (DEN-Denver Intl.) to London (LGW-Gatwick)?
If you booked your Denver, CO (DEN-Denver Intl.) to London (LGW-Gatwick) 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
Denver Intl.
Destination airport
Gatwick
Airlines serving
Air Europa, Air France, American Airlines, Delta, Iberia, Icelandair, KLM, Swiss International Air Lines, TAP Portugal, Turkish Airlines, Virgin Atlantic
Roundtrip price
£540
Distance
7490 km

Book with confidence

Compare flights from Denver to London easily and book with confidence

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

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 Denver Intl. (DEN) to Gatwick (LGW)

The easiest way to view the best deals on flights from Denver to London 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 Denver Intl. to Gatwick start at just £540 and range up to £655.  

To find an even better deal, try  

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

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

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Denver Intl. to Gatwick 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 Denver to London easily and book with confidence

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*Available to Expedia members.