Cheap Flights from Austin (AUS) to Sion (SIR)

Popular airlines from Austin-Bergstrom Intl. Airport (AUS) to Sion (SIR)

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Frequently asked questions

How much does a flight from Austin-Bergstrom Intl. Airport (AUS) to Sion Airport (SIR) cost?
Snag a cheap one-way flight or cheap return flight from Austin-Bergstrom Intl. Airport (AUS) to Sion Airport (SIR) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Austin-Bergstrom Intl. Airport (AUS) to Sion Airport (SIR)?
The cheapest month to fly from AUS to SIR is , when there's less demand. Off-peak months are generally when better flight deals are available between these airports.
What is the cheapest airline that flies from Austin-Bergstrom Intl. Airport (AUS) to Sion Airport (SIR)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from AUS to SIR. Then, sort your results by "Price (lowest to highest)" to snag a great deal.
How many flights per day from Austin-Bergstrom Intl. Airport (AUS) to Sion Airport (SIR)?
You'll need to hop on a flight with a layover if you're traveling from Austin-Bergstrom Intl. Airport (AUS) to Sion Airport (SIR). There are no daily direct flights on this route. However, just filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from AUS to SIR?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* But this can change based on the time of year, 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 Austin-Bergstrom Intl. Airport (AUS) to Sion Airport (SIR)?
Select a flight from Austin-Bergstrom Intl. Airport (AUS) to Sion Airport (SIR) that leaves before 3 PM to reduce the risk of cancellations. Departures after this time 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 Austin-Bergstrom Intl. Airport (AUS) to Sion Airport (SIR) last-minute?
Holding off until just before your trip to book your flight from AUS to SIR generally means paying more. While you might find some last-minute offers, there's no guarantee. Be flexible with your itinerary for a better chance of scoring a bargain.
Is it cheaper to book an AUS to SIR flight and hotel package?
Compared with arranging hotels and flights separately, booking an AUS to SIR flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one convenient place will take the hassle out of planning your trip. Just secure your flights and choose from our extensive range of hotels, then customize your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Austin-Bergstrom Intl. Airport (AUS) to Sion Airport (SIR)?
Generally, it's possible to cancel or reschedule your AUS to SIR flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Travel information

Origin airport
Austin-Bergstrom Intl.
Destination airport
Sion
Distance
5387 mi

Book with confidence

Book with confidence

Austin to Sion Flights

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

 

The best time to book a flight from Austin to Sion

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

 

Austin to Sion Flights

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*Available to One Key members.