Cheap Flights from Grenoble (GNB) to Sion (SIR)

Popular airlines from Grenoble (GNB-Grenoble - Isere) to Sion (SIR)

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Frequently asked questions

How much does a flight from Grenoble - Isere Airport (GNB) to Sion Airport (SIR) cost?
Get a cheap one-way flight or cheap return flight from Grenoble - Isere Airport (GNB) 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 Grenoble - Isere Airport (GNB) to Sion Airport (SIR)?
The cheapest month to fly from GNB to SIR is , when there's less demand. Off-peak months are generally when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Grenoble - Isere Airport (GNB) to Sion Airport (SIR)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll take you from GNB to SIR. Then, sort your results by "Price (lowest to highest)" to score a great deal.
How many flights per day from Grenoble - Isere Airport (GNB) to Sion Airport (SIR)?
There are no daily nonstop flights from Grenoble - Isere Airport (GNB) to Sion Airport (SIR). But you can book flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from GNB to SIR?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change 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 Grenoble - Isere Airport (GNB) to Sion Airport (SIR)?
To touch down at Sion Airport (SIR) without delays, select a flight that leaves Grenoble - Isere Airport (GNB) before 3 PM. The chance 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 Grenoble - Isere Airport (GNB) to Sion Airport (SIR) last-minute?
Last-minute bookings from GNB to SIR are generally more expensive. To secure the lowest prices, start searching for flights well ahead of time. That being said, if you're flexible with your travel plans, you may score a cheap fare right before you leave.
Is it cheaper to book a GNB to SIR flight and hotel package?
Compared with arranging hotels and flights separately, booking a GNB to SIR flight and hotel package with Expedia could result in significant savings. What's more, having everything in one convenient place will take the stress out of planning your trip. Just secure your flights and choose from our wide range of stays, then tailor your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Grenoble - Isere Airport (GNB) to Sion Airport (SIR)?
If you reserved your GNB to SIR flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

Travel information

Origin airport
Grenoble - Isere
Destination airport
Sion
Distance
113 mi

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Grenoble to Sion Flights

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

 

The best time to book a flight from Grenoble to Sion

Sunday is one of the best days to book for cheap flights from Grenoble 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 Grenoble 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 Grenoble to Sion in 2026. 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 Grenoble 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 Grenoble 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.

 

Grenoble to Sion Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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