Cheap Flights from Helsinki (HEL) to Sion (SIR)

Popular airlines from Helsinki-Vantaa Airport (HEL) to Sion (SIR)

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Flights from Helsinki (HEL) to Sion (SIR)
Origin airport
Vantaa
Destination airport
Sion
Distance
1208 mi

Helsinki to Sion Flights

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

 

The best time to book a flight from Helsinki to Sion

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

 

Frequently asked questions

How much does a flight from Vantaa Airport (HEL) to Sion Airport (SIR) cost?
Discover the latest flight deals from HEL to SIR by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from HEL to SIR?
The cheapest flights from HEL to SIR are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from HEL to SIR?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from HEL to SIR. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Vantaa Airport (HEL) to Sion Airport (SIR)?
Direct flights from Vantaa Airport (HEL) to Sion Airport (SIR) aren’t available daily, so you’ll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and pick either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from HEL to SIR?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary depending on a range of factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Vantaa Airport (HEL) to Sion Airport (SIR)?
Select a flight from Vantaa Airport (HEL) to Sion Airport (SIR) that takes off before 3 PM to reduce the likelihood of delays. Later departures are on average 22% more likely to be canceled.**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 Vantaa Airport (HEL) to Sion Airport (SIR) last-minute?
Holding off until just before your trip to book your flight from HEL to SIR generally means paying more. Although you may find some last-minute offers, they’re not always guaranteed. Be flexible with your travel plans for a better chance of snagging a bargain.
Is it cheaper to book a HEL to SIR flight and hotel package?
Compared with arranging hotels and flights separately, booking a HEL to SIR flight and hotel package with Expedia could result in significant savings. Better yet, managing everything in one place will take the stress out of planning your trip. Simply secure your flights and select from our extensive range of hotels, 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 Vantaa Airport (HEL) to Sion Airport (SIR)?
If you booked your HEL to SIR flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

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*Available to One Key members.