$266 Cheap Flights from San José (SJO) to Asuncion (ASU)

View $266 flight on Tue, Nov 25, 2025Opens in a new window

Popular airlines from Juan Santamaria Intl. Airport (SJO) to Asuncion (ASU-Silvio Pettirossi Intl.)

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Cheap Flights from San José to Asuncion (SJO-ASU)

Prices were available within the past 7 days and start at $266 for one-way flights and $538 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

GOL Linhas Aereas S.A.
Tue, Nov 25 - Sat, Nov 29
SJO
San José
ASU
Asuncion
$538 Roundtrip, found 20 hours ago
$538
Roundtrip
found 20 hours ago
Select GOL Linhas Aereas S.A. flight, departing Tue, Nov 25 from San José to Asuncion, returning Sat, Nov 29, priced at $538 found 20 hours ago
GOL Linhas Aereas S.A.
Tue, Nov 4 - Thu, Nov 13
SJO
San José
ASU
Asuncion
$557 Roundtrip, found 2 days ago
$557
Roundtrip
found 2 days ago
Select GOL Linhas Aereas S.A. flight, departing Tue, Nov 4 from San José to Asuncion, returning Thu, Nov 13, priced at $557 found 2 days ago
GOL Linhas Aereas S.A.
Thu, Nov 6 - Tue, Nov 11
SJO
San José
ASU
Asuncion
$576 Roundtrip, found 5 days ago
$576
Roundtrip
found 5 days ago
Select GOL Linhas Aereas S.A. flight, departing Thu, Nov 6 from San José to Asuncion, returning Tue, Nov 11, priced at $576 found 5 days ago
GOL Linhas Aereas S.A.
Thu, Nov 13 - Sat, Nov 15
SJO
San José
ASU
Asuncion
$605 Roundtrip, found 2 days ago
$605
Roundtrip
found 2 days ago
Select GOL Linhas Aereas S.A. flight, departing Thu, Nov 13 from San José to Asuncion, returning Sat, Nov 15, priced at $605 found 2 days ago
GOL Linhas Aereas S.A.
Thu, Nov 13 - Tue, Nov 18
SJO
San José
ASU
Asuncion
$612 Roundtrip, found 5 days ago
$612
Roundtrip
found 5 days ago
Select GOL Linhas Aereas S.A. flight, departing Thu, Nov 13 from San José to Asuncion, returning Tue, Nov 18, priced at $612 found 5 days ago
LATAM Airlines Group
Thu, Nov 6 - Thu, Nov 27
SJO
San José
ASU
Asuncion
$615 Roundtrip, found 3 days ago
$615
Roundtrip
found 3 days ago
Select LATAM Airlines Group flight, departing Thu, Nov 6 from San José to Asuncion, returning Thu, Nov 27, priced at $615 found 3 days ago
Copa
Wed, Mar 4 - Tue, Mar 10
SJO
San José
ASU
Asuncion
$621 Roundtrip, found 10 hours ago
$621
Roundtrip
found 10 hours ago
Select Copa flight, departing Wed, Mar 4 from San José to Asuncion, returning Tue, Mar 10, priced at $621 found 10 hours ago
LATAM Airlines Group
Thu, Nov 6 - Thu, Nov 27
SJO
San José
ASU
Asuncion
$629 Roundtrip, found 3 days ago
$629
Roundtrip
found 3 days ago
Select LATAM Airlines Group flight, departing Thu, Nov 6 from San José to Asuncion, returning Thu, Nov 27, priced at $629 found 3 days ago
avianca
Mon, Nov 17 - Sat, Nov 22
SJO
San José
ASU
Asuncion
$802 Roundtrip, just found
$802
Roundtrip
just found
Select avianca flight, departing Mon, Nov 17 from San José to Asuncion, returning Sat, Nov 22, priced at $802 just found
United
Wed, Mar 4 - Tue, Mar 10
SJO
San José
ASU
Asuncion
$1,916 Roundtrip, found 10 hours ago
$1,916
Roundtrip
found 10 hours ago
Select United flight, departing Wed, Mar 4 from San José to Asuncion, returning Tue, Mar 10, priced at $1,916 found 10 hours ago

Find the cheapest month to fly from San José (SJO) to Asunción (ASU)

November is typically the cheapest month to fly

From $417 - $935 per traveler.

Alternative airports near Asunción

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Silvio Pettirossi Intl. ASU. Cheapest and Closest option available. Average driving time to city center is 21 minutes. Flights from $669
ASU
Silvio Pettirossi Intl.
CheapestClosest
Average driving time to city center21 min
Flights from $669

Frequently asked questions

How much does a flight from Juan Santamaria Intl. Airport (SJO) to Silvio Pettirossi Intl. Airport (ASU) cost?
Snag a cheap one-way flight from $266 or cheap return flight from $538 from Juan Santamaria Intl. Airport (SJO) 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 Juan Santamaria Intl. Airport (SJO) to Silvio Pettirossi Intl. Airport (ASU)?
The cheapest month to fly from SJO to ASU is November, when there's less demand. Off-peak months are typically when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Juan Santamaria Intl. Airport (SJO) to Silvio Pettirossi Intl. Airport (ASU)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest SJO to ASU flight.
How many flights per day from Juan Santamaria Intl. Airport (SJO) to Silvio Pettirossi Intl. Airport (ASU)?
Nonstop flights from Juan Santamaria Intl. Airport (SJO) to Silvio Pettirossi Intl. Airport (ASU) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SJO to ASU?
Typically you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can vary based on the airline, time of year 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 Juan Santamaria Intl. Airport (SJO) to Silvio Pettirossi Intl. Airport (ASU)?
To avoid possible delays on the Juan Santamaria Intl. Airport (SJO) to Silvio Pettirossi Intl. Airport (ASU) route, aim to fly before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**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 Juan Santamaria Intl. Airport (SJO) to Silvio Pettirossi Intl. Airport (ASU) last-minute?
Last-minute bookings from SJO to ASU are typically more expensive. To secure the best rates, start looking for flights ahead of time. That said, if you're flexible with your travel dates, you may find a cheap ticket right before you leave.
Is it cheaper to book a SJO to ASU flight and hotel package?
Compared with arranging hotels and flights separately, booking a SJO to ASU flight and hotel package with Expedia could result in significant savings. What's more, having everything in one easy place will take the stress out of travel planning. Just secure your flights and select from our wide range of stays, then customize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Juan Santamaria Intl. Airport (SJO) to Silvio Pettirossi Intl. Airport (ASU)?
Typically, it's possible to reschedule or cancel your SJO to ASU flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to 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
Juan Santamaría Intl.
Destination airport
Silvio Pettirossi Intl.
Airlines serving
Copa, GOL Linhas Aereas S.A., LATAM Airlines Group, United, avianca
Roundtrip price
$538
Distance
3025 mi

Book with confidence

San José to Asuncion Flights

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

 

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

Sunday is one of the best days to book for cheap flights from San José 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 José 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 José to Asuncion in 2025. You can also book with separate airlines for your outbound and return journeys, from $266 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 José 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 José 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 José to Asuncion Flights

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*Available to One Key members.