$543 Cheap Flights from Miami (MIA) to Sion (SIR)

View $543 flight on Thu, Mar 12, 2026Opens in a new window

Popular airlines from Miami Intl. Airport (MIA) to Sion (SIR)

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Cheap Flights from Miami to Sion (MIA-SIR)

Prices were available within the past 7 days and start at $543 for one-way flights and $736 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Thu, Dec 4 - Thu, Dec 11
MIA
Miami
SIR
Sion
$736 Roundtrip, found 3 days ago
$736
Roundtrip
found 3 days ago
Select Air Canada flight, departing Thu, Dec 4 from Miami to Sion, returning Thu, Dec 11, priced at $736 found 3 days ago
Turkish Airlines
Thu, Dec 4 - Thu, Dec 11
MIA
Miami
SIR
Sion
$800 Roundtrip, found 3 days ago
$800
Roundtrip
found 3 days ago
Select Turkish Airlines flight, departing Thu, Dec 4 from Miami to Sion, returning Thu, Dec 11, priced at $800 found 3 days ago
United
Thu, Dec 4 - Thu, Dec 11
MIA
Miami
SIR
Sion
$815 Roundtrip, found 3 days ago
$815
Roundtrip
found 3 days ago
Select United flight, departing Thu, Dec 4 from Miami to Sion, returning Thu, Dec 11, priced at $815 found 3 days ago
United
Thu, Dec 4 - Thu, Dec 11
MIA
Miami
SIR
Sion
$829 Roundtrip, found 3 days ago
$829
Roundtrip
found 3 days ago
Select United flight, departing Thu, Dec 4 from Miami to Sion, returning Thu, Dec 11, priced at $829 found 3 days ago
Turkish Airlines
Fri, Mar 6 - Thu, Mar 12
MIA
Miami
SIR
Sion
$840 Roundtrip, found 4 days ago
$840
Roundtrip
found 4 days ago
Select Turkish Airlines flight, departing Fri, Mar 6 from Miami to Sion, returning Thu, Mar 12, priced at $840 found 4 days ago
Air Canada
Thu, Dec 4 - Thu, Dec 11
MIA
Miami
SIR
Sion
$846 Roundtrip, found 3 days ago
$846
Roundtrip
found 3 days ago
Select Air Canada flight, departing Thu, Dec 4 from Miami to Sion, returning Thu, Dec 11, priced at $846 found 3 days ago
United
Thu, Dec 4 - Thu, Dec 11
MIA
Miami
SIR
Sion
$925 Roundtrip, found 3 days ago
$925
Roundtrip
found 3 days ago
Select United flight, departing Thu, Dec 4 from Miami to Sion, returning Thu, Dec 11, priced at $925 found 3 days ago
United
Thu, Dec 4 - Thu, Dec 11
MIA
Miami
SIR
Sion
$934 Roundtrip, found 3 days ago
$934
Roundtrip
found 3 days ago
Select United flight, departing Thu, Dec 4 from Miami to Sion, returning Thu, Dec 11, priced at $934 found 3 days ago
Air Canada
Thu, Dec 4 - Thu, Dec 11
MIA
Miami
SIR
Sion
$936 Roundtrip, found 3 days ago
$936
Roundtrip
found 3 days ago
Select Air Canada flight, departing Thu, Dec 4 from Miami to Sion, returning Thu, Dec 11, priced at $936 found 3 days ago
TAP Portugal
Tue, Mar 3 - Tue, Mar 10
MIA
Miami
SIR
Sion
$1,032 Roundtrip, found 6 days ago
$1,032
Roundtrip
found 6 days ago
Select TAP Portugal flight, departing Tue, Mar 3 from Miami to Sion, returning Tue, Mar 10, priced at $1,032 found 6 days ago

Frequently asked questions

How much does a flight from Miami Intl. Airport (MIA) to Sion Airport (SIR) cost?
Grab a cheap one-way flight from $543 or cheap return flight from $736 from Miami Intl. Airport (MIA) 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 Miami Intl. Airport (MIA) to Sion Airport (SIR)?
December is the most affordable month to fly from MIA to SIR. Traveling outside of peak seasons is often the key to finding better fares.
What is the cheapest airline that flies from Miami Intl. Airport (MIA) to Sion Airport (SIR)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from MIA to SIR. Then, sort your results by "Price (lowest to highest)" to pick up the best deal available.
How many flights per day from Miami Intl. Airport (MIA) to Sion Airport (SIR)?
There are no daily nonstop flights departing from Miami Intl. Airport (MIA) to Sion Airport (SIR). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from MIA to SIR?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change depending on various factors, such as the airline 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 Miami Intl. Airport (MIA) to Sion Airport (SIR)?
To touch down at Sion Airport (SIR) without delays, book a flight that leaves from Miami Intl. Airport (MIA) before 3 PM. The likelihood 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 Miami Intl. Airport (MIA) to Sion Airport (SIR) last-minute?
Booking your flight from MIA to SIR shortly before your journey is generally more expensive. But if there's some wiggle room with your schedule, you could score a cheap last-minute fare.
Is it cheaper to book a MIA to SIR flight and hotel package?
Compared with arranging flights and hotels separately, booking a MIA to SIR flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one place takes the hassle out of travel planning. Just pick your flights and select from our wide range of stays, then personalize your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Miami Intl. Airport (MIA) to Sion Airport (SIR)?
It's usually possible to reschedule or cancel your MIA to SIR flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Miami Intl.
Destination airport
Sion
Roundtrip price
$735
Distance
4844 mi

Book with confidence

Miami to Sion Flights

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

 

The best time to book a flight from Miami to Sion

Sunday is one of the best days to book for cheap flights from Miami 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 Miami 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 Miami to Sion in 2025. You can also book with separate airlines for your outbound and return journeys, from $543 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 Miami 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 Miami 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.

 

Miami to Sion Flights

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*Available to One Key members.