Cheap Flights from Montreal (YUL) to Sion (SIR)

Popular airlines from Montreal–Trudeau Intl. Airport (YUL) to Sion (SIR)

Frequently asked questions

How much does a flight from Pierre Elliott Trudeau Intl. Airport (YUL) to Sion Airport (SIR) cost?
Secure a cheap one-way flight or cheap return flight from Pierre Elliott Trudeau Intl. Airport (YUL) 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 Pierre Elliott Trudeau Intl. Airport (YUL) to Sion Airport (SIR)?
Planning your trip for is a good way to save, as it's the cheapest month for flights between YUL and SIR. You'll typically find the lowest prices during the off-season.
What is the cheapest airline that flies from Pierre Elliott Trudeau Intl. Airport (YUL) to Sion Airport (SIR)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from YUL to SIR. Then, sort your results by "Price (lowest to highest)" to snap up a good deal.
How many flights per day from Pierre Elliott Trudeau Intl. Airport (YUL) to Sion Airport (SIR)?
There aren't any daily nonstop flights available from Pierre Elliott Trudeau Intl. Airport (YUL) 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 on your way in no time at all.
What day of the week has the most flights from YUL to SIR?
Generally you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can vary based on the time of year, 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 Pierre Elliott Trudeau Intl. Airport (YUL) to Sion Airport (SIR)?
To avoid possible delays on the Pierre Elliott Trudeau Intl. Airport (YUL) to Sion Airport (SIR) route, aim to fly before 3 PM. Later flights have a 22% higher chance of cancellation.**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 Pierre Elliott Trudeau Intl. Airport (YUL) to Sion Airport (SIR) last-minute?
Last-minute bookings from YUL to SIR are generally more expensive. To secure the best prices, start looking for flights as early as possible. That being said, if your travel plans are flexible, it's possible to find a cheap fare just before your departure.
Is it cheaper to book a YUL to SIR flight and hotel package?
Compared with arranging flights and hotels separately, booking a YUL to SIR flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one convenient place takes the hassle out of travel planning. Simply secure your flights and select from our extensive range of hotels, then customize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Pierre Elliott Trudeau Intl. Airport (YUL) to Sion Airport (SIR)?
If you booked your YUL to SIR flight in the last 24 hours, you may be able to modify or cancel 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, head to our Customer Service portal for more details.

Travel information

Travel information

Origin airport
Pierre Elliott Trudeau Intl.
Destination airport
Sion
Distance
3721 mi

Book with confidence

Book with confidence

Montreal to Sion Flights

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

 

The best time to book a flight from Montreal to Sion

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

 

Montreal to Sion Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.