Cheap Flights from Barcelona (BCN) to Sion (SIR)

Popular airlines from Barcelona El Prat Airport (BCN) to Sion (SIR)

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Frequently asked questions

How much does a flight from Barcelona Intl. Airport (BCN) to Sion Airport (SIR) cost?
Lock in a cheap one-way flight or cheap return flight from Barcelona Intl. Airport (BCN) 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 Barcelona Intl. Airport (BCN) to Sion Airport (SIR)?
Flying in can help you save, as it's the cheapest month for flights between BCN and SIR. You'll usually find the lowest prices during off-peak months.
What is the cheapest airline that flies from Barcelona Intl. Airport (BCN) to Sion Airport (SIR)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from BCN to SIR. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from Barcelona Intl. Airport (BCN) to Sion Airport (SIR)?
You'll need to catch a flight with a layover when traveling from Barcelona Intl. Airport (BCN) to Sion Airport (SIR). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from BCN to SIR?
Typically you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* However, this can change depending on the season, carrier 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 Barcelona Intl. Airport (BCN) to Sion Airport (SIR)?
To touch down at Sion Airport (SIR) on schedule, select a flight that takes off from Barcelona Intl. Airport (BCN) 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 Barcelona Intl. Airport (BCN) to Sion Airport (SIR) last-minute?
Holding off until just before your departure to book your flight from BCN to SIR generally means paying more. Although you may find some last-minute discounts, there's no guarantee. Be flexible with your travel plans for a better chance of snagging a bargain.
Is it cheaper to book a BCN to SIR flight and hotel package?
Opting for a BCN to SIR flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Select from our extensive range of hotels and then add flights, car rentals and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Barcelona Intl. Airport (BCN) to Sion Airport (SIR)?
If you booked your BCN to SIR flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more information.

Travel information

Origin airport
Barcelona Intl.
Destination airport
Sion
Distance
429 mi

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Barcelona to Sion Flights

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

 

The best time to book a flight from Barcelona to Sion

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

 

Barcelona to Sion Flights

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*Available to One Key members.