Popular airlines from Paris Charles de Gaulle Airport (CDG) to Sion (SIR)

Frequently asked questions

How much does a flight from Roissy-Charles de Gaulle Airport (CDG) to Sion Airport (SIR) cost?
Get a cheap one-way flight or cheap return flight from Roissy-Charles de Gaulle Airport (CDG) to Sion Airport (SIR) 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 Roissy-Charles de Gaulle Airport (CDG) to Sion Airport (SIR)?
The cheapest month to fly from CDG to SIR is , when demand is low. Off-peak months are typically when airlines offer better prices between these airports.
What is the cheapest airline that flies from Roissy-Charles de Gaulle Airport (CDG) to Sion Airport (SIR)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest CDG to SIR flight.
How many flights per day from Roissy-Charles de Gaulle Airport (CDG) to Sion Airport (SIR)?
There are no daily nonstop flights from Roissy-Charles de Gaulle Airport (CDG) to Sion Airport (SIR). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from CDG to SIR?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Roissy-Charles de Gaulle Airport (CDG) to Sion Airport (SIR)?
Book a flight from Roissy-Charles de Gaulle Airport (CDG) to Sion Airport (SIR) that leaves before 3 PM to reduce the risk of delays and cancellations. Later departures have a 22% higher chance of being canceled, on average.**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 Roissy-Charles de Gaulle Airport (CDG) to Sion Airport (SIR) last-minute?
Last-minute bookings from CDG to SIR are generally more expensive. To lock in the lowest rates, start searching for flights as early as possible. That said, if your travel plans are flexible, you may find a cheap ticket right before your journey.
Is it cheaper to book a CDG to SIR flight and hotel package?
Compared with arranging hotels and flights separately, booking a CDG to SIR flight and hotel package with Expedia could result in significant savings. What's more, having it all in one place takes the hassle out of travel planning. Simply pick your flights and select from our extensive range of stays, then customize your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Roissy-Charles de Gaulle Airport (CDG) to Sion Airport (SIR)?
It's generally possible to reschedule or cancel your CDG to SIR flight. However, if it's been more than 24 hours since booking, 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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Paris to Sion Flights

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

 

The best time to book a flight from Paris to Sion

Sunday is one of the best days to book for cheap flights from Paris 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 Paris 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 Paris 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 Paris 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 Paris 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.

 

Paris to Sion Flights

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*Available to One Key members.