Cheap Flights from Athens (ATH) to Sion (SIR)

Popular airlines from Athens Intl. Airport (ATH) to Sion (SIR)

Frequently asked questions

How much does a flight from Eleftherios Venizelos Airport (ATH) to Sion Airport (SIR) cost?
Secure a cheap one-way flight or cheap return flight from Eleftherios Venizelos Airport (ATH) 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 Eleftherios Venizelos Airport (ATH) to Sion Airport (SIR)?
Traveling in may help you find better deals, as it's the cheapest month for flights between ATH and SIR. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from Eleftherios Venizelos Airport (ATH) to Sion Airport (SIR)?
Use the filter tool on Expedia to compare different airlines and find the cheapest carrier that'll fly you from ATH to SIR. Then, sort your results by "Price (lowest to highest)" to snap up a good deal.
How many flights per day from Eleftherios Venizelos Airport (ATH) to Sion Airport (SIR)?
There are no daily nonstop flights available from Eleftherios Venizelos Airport (ATH) to Sion Airport (SIR). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from ATH to SIR?
Usually you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* However, this can change based on the season, 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 Eleftherios Venizelos Airport (ATH) to Sion Airport (SIR)?
Select a flight from Eleftherios Venizelos Airport (ATH) to Sion Airport (SIR) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures later than this 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 Eleftherios Venizelos Airport (ATH) to Sion Airport (SIR) last-minute?
Last-minute bookings from ATH to SIR are typically more expensive. To lock in the lowest prices, start searching for flights ahead of time. That said, if your travel plans are flexible, it's possible to find a cheap ticket right before you leave.
Is it cheaper to book an ATH to SIR flight and hotel package?
Opting for an ATH to SIR flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add activities, car rentals and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Eleftherios Venizelos Airport (ATH) to Sion Airport (SIR)?
Usually, it's possible to cancel or reschedule your ATH 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.

Travel information

Origin airport
Eleftherios Venizelos
Destination airport
Sion
Distance
1022 mi

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Athens to Sion Flights

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

 

The best time to book a flight from Athens to Sion

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

 

Athens to Sion Flights

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*Available to One Key members.