Cheap Flights from Las Vegas (LAS) to Sion (SIR)

Popular airlines from Harry Reid Intl. Airport (LAS) to Sion (SIR)

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Frequently asked questions

How much does a flight from Harry Reid Intl. Airport (LAS) to Sion Airport (SIR) cost?
Lock in a cheap one-way flight or cheap return flight from Harry Reid Intl. Airport (LAS) to Sion Airport (SIR) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Harry Reid Intl. Airport (LAS) to Sion Airport (SIR)?
is the least expensive month to fly from LAS to SIR. Planning your trip for the off-season is often the key to finding better deals on flights.
What is the cheapest airline that flies from Harry Reid Intl. Airport (LAS) to Sion Airport (SIR)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll fly you from LAS to SIR. Then, sort your results by "Price (lowest to highest)" to pick up the best deal available.
How many flights per day from Harry Reid Intl. Airport (LAS) to Sion Airport (SIR)?
You'll need to catch a flight with a layover if you're traveling from Harry Reid Intl. Airport (LAS) to Sion Airport (SIR). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from LAS to SIR?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change depending on a number of factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Harry Reid Intl. Airport (LAS) to Sion Airport (SIR)?
To reach Sion Airport (SIR) without delays, opt for a flight that takes off from Harry Reid Intl. Airport (LAS) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Harry Reid Intl. Airport (LAS) to Sion Airport (SIR) last-minute?
Last-minute fares from LAS to SIR are typically more expensive. To lock in the lowest prices, start searching for flights as soon as possible. That being said, if you're flexible with your travel dates, it's possible to land a cheap ticket just before your departure.
Is it cheaper to book a LAS to SIR flight and hotel package?
You can save money by booking a LAS to SIR flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. Once you've chosen your ideal accommodations and flights, you can add extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Harry Reid Intl. Airport (LAS) to Sion Airport (SIR)?
Generally, it's possible to reschedule or cancel your LAS to SIR flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Harry Reid Intl.
Destination airport
Sion
Distance
5722 mi

Book with confidence

Las Vegas to Sion Flights

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

 

The best time to book a flight from Las Vegas to Sion

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

 

Las Vegas to Sion Flights

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*Available to One Key members.