$402 Cheap Flights from San Antonio (SAT) to Asuncion (ASU)

View $402 flight on Tue, Dec 30, 2025Opens in a new window

Popular airlines from San Antonio International Airport (SAT) to Asuncion (ASU-Silvio Pettirossi Intl.)

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Cheap Flights from San Antonio to Asuncion (SAT-ASU)

Prices were available within the past 7 days and start at $402 for one-way flights and $1,283 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Dec 3 - Thu, Dec 11
SAT
San Antonio
ASU
Asuncion
$1,283 Roundtrip, found 1 day ago
$1,283
Roundtrip
found 1 day ago
Select United flight, departing Wed, Dec 3 from San Antonio to Asuncion, returning Thu, Dec 11, priced at $1,283 found 1 day ago
United
Sun, Dec 7 - Thu, Dec 11
SAT
San Antonio
ASU
Asuncion
$1,289 Roundtrip, found 1 day ago
$1,289
Roundtrip
found 1 day ago
Select United flight, departing Sun, Dec 7 from San Antonio to Asuncion, returning Thu, Dec 11, priced at $1,289 found 1 day ago
Delta
Mon, Nov 10 - Mon, Nov 17
SAT
San Antonio
ASU
Asuncion
$1,290 Roundtrip, found 4 days ago
$1,290
Roundtrip
found 4 days ago
Select Delta flight, departing Mon, Nov 10 from San Antonio to Asuncion, returning Mon, Nov 17, priced at $1,290 found 4 days ago
LATAM Airlines Group
Mon, Nov 10 - Mon, Nov 17
SAT
San Antonio
ASU
Asuncion
$1,305 Roundtrip, found 4 days ago
$1,305
Roundtrip
found 4 days ago
Select LATAM Airlines Group flight, departing Mon, Nov 10 from San Antonio to Asuncion, returning Mon, Nov 17, priced at $1,305 found 4 days ago
LATAM Airlines Group
Mon, Nov 10 - Mon, Nov 17
SAT
San Antonio
ASU
Asuncion
$1,310 Roundtrip, found 4 days ago
$1,310
Roundtrip
found 4 days ago
Select LATAM Airlines Group flight, departing Mon, Nov 10 from San Antonio to Asuncion, returning Mon, Nov 17, priced at $1,310 found 4 days ago
United
Mon, Nov 10 - Mon, Nov 17
SAT
San Antonio
ASU
Asuncion
$1,331 Roundtrip, found 4 days ago
$1,331
Roundtrip
found 4 days ago
Select United flight, departing Mon, Nov 10 from San Antonio to Asuncion, returning Mon, Nov 17, priced at $1,331 found 4 days ago
Delta
Thu, Dec 4 - Sat, Dec 13
SAT
San Antonio
ASU
Asuncion
$1,363 Roundtrip, found 1 day ago
$1,363
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Dec 4 from San Antonio to Asuncion, returning Sat, Dec 13, priced at $1,363 found 1 day ago
United
Sat, Dec 6 - Fri, Dec 12
SAT
San Antonio
ASU
Asuncion
$1,394 Roundtrip, found 1 day ago
$1,394
Roundtrip
found 1 day ago
Select United flight, departing Sat, Dec 6 from San Antonio to Asuncion, returning Fri, Dec 12, priced at $1,394 found 1 day ago
United
Sun, Dec 7 - Tue, Dec 9
SAT
San Antonio
ASU
Asuncion
$1,396 Roundtrip, found 1 day ago
$1,396
Roundtrip
found 1 day ago
Select United flight, departing Sun, Dec 7 from San Antonio to Asuncion, returning Tue, Dec 9, priced at $1,396 found 1 day ago
United
Sat, Dec 6 - Fri, Dec 12
SAT
San Antonio
ASU
Asuncion
$1,397 Roundtrip, found 1 day ago
$1,397
Roundtrip
found 1 day ago
Select United flight, departing Sat, Dec 6 from San Antonio to Asuncion, returning Fri, Dec 12, priced at $1,397 found 1 day ago

Frequently asked questions

How much does a flight from San Antonio Intl. Airport (SAT) to Silvio Pettirossi Intl. Airport (ASU) cost?
Get a cheap one-way flight from $402 or cheap return flight from $1,283 from San Antonio Intl. Airport (SAT) to Silvio Pettirossi Intl. Airport (ASU) 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 San Antonio Intl. Airport (SAT) to Silvio Pettirossi Intl. Airport (ASU)?
The cheapest month to fly from SAT to ASU is December, when demand is low. Off-peak months are usually when airlines offer better prices between these airports.
What is the cheapest airline that flies from San Antonio Intl. Airport (SAT) to Silvio Pettirossi Intl. Airport (ASU)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll fly you from SAT to ASU. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from San Antonio Intl. Airport (SAT) to Silvio Pettirossi Intl. Airport (ASU)?
Direct flights from San Antonio Intl. Airport (SAT) to Silvio Pettirossi Intl. Airport (ASU) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SAT to ASU?
Typically you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can change depending 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 San Antonio Intl. Airport (SAT) to Silvio Pettirossi Intl. Airport (ASU)?
To reach Silvio Pettirossi Intl. Airport (ASU) on time, pick a flight that leaves San Antonio Intl. Airport (SAT) before 3 PM. The chance 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 San Antonio Intl. Airport (SAT) to Silvio Pettirossi Intl. Airport (ASU) last-minute?
Holding off until just before your departure to book a ticket from SAT to ASU often results in higher prices. While you may come across some last-minute deals, there's no guarantee. Keep your travel plans flexible to boost your chances of landing a bargain.
Is it cheaper to book a SAT to ASU flight and hotel package?
Securing a SAT to ASU flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Select from our extensive range of stays and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Antonio Intl. Airport (SAT) to Silvio Pettirossi Intl. Airport (ASU)?
If you reserved your SAT to ASU flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more information.

Travel information

Origin airport
San Antonio Intl.
Destination airport
Silvio Pettirossi Intl.
Airlines serving
LATAM Airlines Group, United
Roundtrip price
$1,282
Distance
4657 mi

Book with confidence

San Antonio to Asuncion Flights

The cheapest times to fly from San Antonio to Asuncion

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 San Antonio to Asuncion are during the month of December. You can find some of the cheapest flights from San Antonio to Asuncion with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Antonio to Asuncion

Sunday is one of the best days to book for cheap flights from San Antonio to Asuncion: 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 San Antonio to Asuncion

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 San Antonio to Asuncion in 2025. You can also book with separate airlines for your outbound and return journeys, from $402 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 San Antonio to Asuncion 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 San Antonio to Asuncion 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.

 

San Antonio to Asuncion Flights

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*Available to One Key members.