Cheap Flights from Lille (LIL) to St. Louis (STL)

Popular airlines from Lille (LIL-Lesquin) to St. Louis Lambert Intl. Airport (STL)

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Flights from Lille (LIL) to St. Louis (STL)
Origin airport
Lesquin
Destination airport
Lambert-St. Louis Intl.
Distance
4355 mi

Lille to St. Louis Flights

The cheapest times to fly from Lille to St. Louis

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 Lille to St. Louis are during the month of . You can find some of the cheapest flights from Lille to St. Louis with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Lille to St. Louis

Sunday is one of the best days to book for cheap flights from Lille to St. Louis: 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 Lille to St. Louis

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 Lille to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Lille to St. Louis 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 Lille to St. Louis 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.

 

Frequently asked questions

How much does a flight from Lesquin Airport (LIL) to Lambert-St. Louis Intl. Airport (STL) cost?
Get a cheap one-way flight or cheap return flight from Lesquin Airport (LIL) to Lambert-St. Louis Intl. Airport (STL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Lesquin Airport (LIL) to Lambert-St. Louis Intl. Airport (STL)?
Planning your getaway for is a great way to save, as it's the cheapest month for flights between LIL and STL. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from Lesquin Airport (LIL) to Lambert-St. Louis Intl. Airport (STL)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll fly you from LIL to STL. Then, sort your results by "Price (lowest to highest)" to snag a great deal.
How many flights per day from Lesquin Airport (LIL) to Lambert-St. Louis Intl. Airport (STL)?
Nonstop flights from Lesquin Airport (LIL) to Lambert-St. Louis Intl. Airport (STL) 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 dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from LIL to STL?
Usually you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* But this can vary based on the season, airline 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 Lesquin Airport (LIL) to Lambert-St. Louis Intl. Airport (STL)?
To touch down at Lambert-St. Louis Intl. Airport (STL) on schedule, pick a flight that leaves from Lesquin Airport (LIL) 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 Lesquin Airport (LIL) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Last-minute fares from LIL to STL are typically more expensive. To secure the lowest rates, start looking for flights as early as possible. That said, if your travel plans are flexible, you may find a cheap fare right before you leave.
Is it cheaper to book a LIL to STL flight and hotel package?
You can save money by booking a LIL to STL flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. Once you've selected your ideal accommodations and flights, consider adding extras like activities, car rentals and tours.
Can I cancel or change the date of my flight from Lesquin Airport (LIL) to Lambert-St. Louis Intl. Airport (STL)?
It's usually possible to reschedule or cancel your LIL to STL flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

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