$920 Cheap Flights from Boston (BOS) to Lille (LIL)

View $920 flight on Wed, Jun 3, 2026Opens in a new window

Popular airlines from Logan International Airport (BOS) to Lille (LIL-Lesquin)

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Cheap Flights from Boston to Lille (BOS-LIL)

Prices were available within the past 7 days and start at $920 for one-way flights and $758 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Turkish Airlines
Mon, Jan 19 - Mon, Jan 26
BOS
Boston
LIL
Lille
$758 Roundtrip, found 15 hours ago
$758
Roundtrip
found 15 hours ago
Select Turkish Airlines flight, departing Mon, Jan 19 from Boston to Lille, returning Mon, Jan 26, priced at $758 found 15 hours ago
Turkish Airlines
Mon, Jan 19 - Mon, Jan 26
BOS
Boston
LIL
Lille
$1,146 Roundtrip, found 15 hours ago
$1,146
Roundtrip
found 15 hours ago
Select Turkish Airlines flight, departing Mon, Jan 19 from Boston to Lille, returning Mon, Jan 26, priced at $1,146 found 15 hours ago
Flights from Boston (BOS) to Lille (LIL)
Origin airport
Logan Intl.
Destination airport
Lesquin
Roundtrip price
$757
Distance
3422 mi

Boston to Lille Flights

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

 

The best time to book a flight from Boston to Lille

Sunday is one of the best days to book for cheap flights from Boston 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 Boston 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 Boston to Lille in 2026. You can also book with separate airlines for your outbound and return journeys, from $920 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 Boston 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 Boston 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.

 

Frequently asked questions

How much does a flight from Logan Intl. Airport (BOS) to Lesquin Airport (LIL) cost?
Lock in a cheap one-way flight from $920 or cheap return flight from $758 from Logan Intl. Airport (BOS) to Lesquin Airport (LIL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Logan Intl. Airport (BOS) to Lesquin Airport (LIL)?
The cheapest month to fly from BOS to LIL is January, when demand is low. Off-peak months are generally when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Logan Intl. Airport (BOS) to Lesquin Airport (LIL)?
To find the cheapest airline flying from BOS to LIL, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Logan Intl. Airport (BOS) to Lesquin Airport (LIL)?
There aren't any daily direct flights from Logan Intl. Airport (BOS) to Lesquin Airport (LIL). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from BOS to LIL?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Logan Intl. Airport (BOS) to Lesquin Airport (LIL)?
To reach Lesquin Airport (LIL) without delays, select a flight that takes off from Logan Intl. Airport (BOS) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Logan Intl. Airport (BOS) to Lesquin Airport (LIL) last-minute?
Booking your flight from BOS to LIL just before your trip is generally more expensive. But if you're flexible with your departure dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book a BOS to LIL flight and hotel package?
Opting for a BOS to LIL flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Select from our impressive range of accommodations and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Logan Intl. Airport (BOS) to Lesquin Airport (LIL)?
If you booked your BOS to LIL flight in the last 24 hours, you may be able to modify or cancel it without any fees. 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, head to our Customer Service portal for more details.

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*Available to One Key members.