$584 Cheap Flights from Chicago (ORD) to Lille (LIL)

View $584 flight on Tue, Jan 13, 2026Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Lille (LIL-Lesquin)

Cheap Flights from Chicago to Lille (ORD-LIL)

Prices were available within the past 7 days and start at $584 for one-way flights and $910 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Turkish Airlines
Sat, Nov 8 - Sat, Nov 15
ORD
Chicago
LIL
Lille
$910 Roundtrip, found 5 days ago
$910
Roundtrip
found 5 days ago
Select Turkish Airlines flight, departing Sat, Nov 8 from Chicago to Lille, returning Sat, Nov 15, priced at $910 found 5 days ago
Turkish Airlines
Fri, Nov 14 - Fri, Nov 21
ORD
Chicago
LIL
Lille
$1,042 Roundtrip, found 1 day ago
$1,042
Roundtrip
found 1 day ago
Select Turkish Airlines flight, departing Fri, Nov 14 from Chicago to Lille, returning Fri, Nov 21, priced at $1,042 found 1 day ago

Frequently asked questions

How much does a flight from O'Hare Intl. Airport (ORD) to Lesquin Airport (LIL) cost?
Secure a cheap one-way flight from $584 or cheap return flight from $910 from O'Hare Intl. Airport (ORD) 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 O'Hare Intl. Airport (ORD) to Lesquin Airport (LIL)?
November is the most affordable month to fly from ORD to LIL. Timing your trip outside of the busy season is often the key to landing a great deal.
What is the cheapest airline that flies from O'Hare Intl. Airport (ORD) to Lesquin Airport (LIL)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from ORD to LIL. Then, sort your results by "Price (lowest to highest)" to snag a great deal.
How many flights per day from O'Hare Intl. Airport (ORD) to Lesquin Airport (LIL)?
There are no daily direct flights departing from O'Hare Intl. Airport (ORD) to Lesquin Airport (LIL). But you can book flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be on your way in no time.
What day of the week has the most flights from ORD to LIL?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary depending on a range of factors, such as the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from O'Hare Intl. Airport (ORD) to Lesquin Airport (LIL)?
To reach Lesquin Airport (LIL) on time, book a flight that leaves O'Hare Intl. Airport (ORD) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 O'Hare Intl. Airport (ORD) to Lesquin Airport (LIL) last-minute?
Booking your flight from ORD to LIL right before your journey is usually more expensive. But if there's some wiggle room with your travel dates and times, you could land a cheap last-minute fare.
Is it cheaper to book an ORD to LIL flight and hotel package?
Securing an ORD to LIL flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Pick from our impressive range of accommodations and then add activities, flights 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 O'Hare Intl. Airport (ORD) to Lesquin Airport (LIL)?
If you booked your ORD to LIL flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

Travel information

Travel information

Origin airport
O'Hare Intl.
Destination airport
Lesquin
Roundtrip price
$909
Distance
4107 mi

Book with confidence

Book with confidence

Chicago to Lille Flights

The cheapest times to fly from Chicago 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 Chicago to Lille are during the month of November. You can find some of the cheapest flights from Chicago to Lille with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Chicago to Lille

Sunday is one of the best days to book for cheap flights from Chicago 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 Chicago 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 Chicago to Lille in 2025. You can also book with separate airlines for your outbound and return journeys, from $584 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 Chicago 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 Chicago 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.

 

Chicago to Lille Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.