$636 Cheap Flights from Denver (DEN) to Lille (LIL)

View $636 flight on Tue, May 12, 2026Opens in a new window

Popular airlines from Denver Intl. Airport (DEN) to Lille (LIL-Lesquin)

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Cheap Flights from Denver to Lille (DEN-LIL)

Prices were available within the past 7 days and start at $636 for one-way flights and $1,218 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Turkish Airlines
Thu, Jan 15 - Tue, Feb 10
DEN
Denver
LIL
Lille
$1,218 Roundtrip, found 5 days ago
$1,218
Roundtrip
found 5 days ago
Select Turkish Airlines flight, departing Thu, Jan 15 from Denver to Lille, returning Tue, Feb 10, priced at $1,218 found 5 days ago
Turkish Airlines
Thu, Jan 15 - Tue, Feb 10
DEN
Denver
LIL
Lille
$1,458 Roundtrip, found 5 days ago
$1,458
Roundtrip
found 5 days ago
Select Turkish Airlines flight, departing Thu, Jan 15 from Denver to Lille, returning Tue, Feb 10, priced at $1,458 found 5 days ago

Frequently asked questions

How much does a flight from Denver Intl. Airport (DEN) to Lesquin Airport (LIL) cost?
Snag a cheap one-way flight from $636 or cheap return flight from $1,218 from Denver Intl. Airport (DEN) to Lesquin Airport (LIL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Denver Intl. Airport (DEN) to Lesquin Airport (LIL)?
Flying in January may help you find better deals, as it's the cheapest month for flights between DEN and LIL. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from Denver Intl. Airport (DEN) to Lesquin Airport (LIL)?
To find the cheapest airline flying from DEN to LIL, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Denver Intl. Airport (DEN) to Lesquin Airport (LIL)?
Direct flights from Denver Intl. Airport (DEN) to Lesquin Airport (LIL) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DEN to LIL?
Usually you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* But this can change depending on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Denver Intl. Airport (DEN) to Lesquin Airport (LIL)?
Opt for a flight from Denver Intl. Airport (DEN) to Lesquin Airport (LIL) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Denver Intl. Airport (DEN) to Lesquin Airport (LIL) last-minute?
Holding off until right before your break to book your flight from DEN to LIL often results in higher prices. While you may come across some last-minute deals, there's no guarantee. Keep your travel plans flexible for a better chance of landing a bargain.
Is it cheaper to book a DEN to LIL flight and hotel package?
Opting for a DEN to LIL flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Choose from our impressive range of accommodations 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 Intl. Airport (DEN) to Lesquin Airport (LIL)?
In most instances, you're able to cancel or reschedule your DEN to LIL flight. However, additional charges may apply, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you need further information, visit our Customer Service portal.

Travel information

Origin airport
Denver Intl.
Destination airport
Lesquin
Roundtrip price
$1,217
Distance
4819 mi

Book with confidence

Denver to Lille Flights

The cheapest times to fly from Denver to Lille

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Denver to Lille are during the month of January. You can find some of the cheapest flights from Denver to Lille with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Denver to Lille

Sunday is one of the best days to book for cheap flights from Denver to Lille: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Denver to Lille

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Denver to Lille in 2026. You can also book with separate airlines for your outbound and return journeys, from $636 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Denver to Lille flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Denver to Lille airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Denver to Lille Flights

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*Available to One Key members.