Cheap Flights from Lille (LIL) to Sion (SIR)

Popular airlines from Lille (LIL-Lesquin) to Sion (SIR)

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Frequently asked questions

How much does a flight from Lesquin Airport (LIL) to Sion Airport (SIR) cost?
Snag a cheap one-way flight or cheap return flight from Lesquin Airport (LIL) to Sion Airport (SIR) 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 Lesquin Airport (LIL) to Sion Airport (SIR)?
The cheapest month to fly from LIL to SIR is , when demand is low. Off-peak months are usually when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Lesquin Airport (LIL) to Sion Airport (SIR)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll fly you from LIL to SIR. Then, sort your results by "Price (lowest to highest)" to snag the best deal available.
How many flights per day from Lesquin Airport (LIL) to Sion Airport (SIR)?
There are no daily direct flights available from Lesquin Airport (LIL) to Sion Airport (SIR). 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 LIL to SIR?
Generally you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can vary 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 Lesquin Airport (LIL) to Sion Airport (SIR)?
To reach Sion Airport (SIR) without delays, book a flight that leaves Lesquin Airport (LIL) before 3 PM. The chance 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 Sion Airport (SIR) last-minute?
Waiting until just before your departure to book a flight from LIL to SIR generally means paying more. While it's possible to find some last-minute deals, they're not always guaranteed. Allow some flexibility in your schedule to maximize your chances of scoring a bargain.
Is it cheaper to book a LIL to SIR flight and hotel package?
Compared with arranging flights and hotels separately, booking a LIL to SIR flight and hotel package with Expedia could result in significant savings. What's more, having everything in one convenient place takes the hassle out of planning your trip. Simply secure your flights and select from our wide range of stays, then tailor your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Lesquin Airport (LIL) to Sion Airport (SIR)?
Typically, it's possible to reschedule or cancel your LIL to SIR flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Lesquin
Destination airport
Sion
Distance
357 mi

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Lille to Sion Flights

The cheapest times to fly from Lille to Sion

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

 

The best time to book a flight from Lille to Sion

Sunday is one of the best days to book for cheap flights from Lille to Sion: 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 Sion

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 Sion 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 Sion 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 Sion 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.

 

Lille to Sion Flights

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