$196 Cheap Flights from San José (SJO) to Buenos Aires (AEP)

View $196 flight on Fri, Nov 28, 2025Opens in a new window

Popular airlines from Juan Santamaria Intl. Airport (SJO) to Buenos Aires (AEP-Aeroparque Jorge Newbery)

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Cheap Flights from San José to Buenos Aires (SJO-AEP)

Prices were available within the past 7 days and start at $196 for one-way flights and $435 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

LATAM Airlines Group
Wed, Oct 29 - Mon, Dec 1
SJO
San José
AEP
Buenos Aires
$435 Roundtrip, found 1 day ago
$435
Roundtrip
found 1 day ago
Select LATAM Airlines Group flight, departing Wed, Oct 29 from San José to Buenos Aires, returning Mon, Dec 1, priced at $435 found 1 day ago
LATAM Airlines Group
Thu, Oct 30 - Thu, Nov 6
SJO
San José
AEP
Buenos Aires
$439 Roundtrip, found 3 hours ago
$439
Roundtrip
found 3 hours ago
Select LATAM Airlines Group flight, departing Thu, Oct 30 from San José to Buenos Aires, returning Thu, Nov 6, priced at $439 found 3 hours ago
LATAM Airlines Group
Fri, Oct 31 - Thu, Nov 6
SJO
San José
AEP
Buenos Aires
$444 Roundtrip, found 10 hours ago
$444
Roundtrip
found 10 hours ago
Select LATAM Airlines Group flight, departing Fri, Oct 31 from San José to Buenos Aires, returning Thu, Nov 6, priced at $444 found 10 hours ago
LATAM Airlines Group
Wed, Oct 29 - Mon, Dec 1
SJO
San José
AEP
Buenos Aires
$454 Roundtrip, found 1 day ago
$454
Roundtrip
found 1 day ago
Select LATAM Airlines Group flight, departing Wed, Oct 29 from San José to Buenos Aires, returning Mon, Dec 1, priced at $454 found 1 day ago
GOL Linhas Aereas S.A.
Sat, Nov 22 - Wed, Nov 26
SJO
San José
AEP
Buenos Aires
$456 Roundtrip, found 2 hours ago
$456
Roundtrip
found 2 hours ago
Select GOL Linhas Aereas S.A. flight, departing Sat, Nov 22 from San José to Buenos Aires, returning Wed, Nov 26, priced at $456 found 2 hours ago
GOL Linhas Aereas S.A.
Tue, Oct 21 - Sat, Oct 25
SJO
San José
AEP
Buenos Aires
$456 Roundtrip, found 16 hours ago
$456
Roundtrip
found 16 hours ago
Select GOL Linhas Aereas S.A. flight, departing Tue, Oct 21 from San José to Buenos Aires, returning Sat, Oct 25, priced at $456 found 16 hours ago
LATAM Airlines Group
Thu, Oct 30 - Thu, Nov 6
SJO
San José
AEP
Buenos Aires
$458 Roundtrip, found 3 hours ago
$458
Roundtrip
found 3 hours ago
Select LATAM Airlines Group flight, departing Thu, Oct 30 from San José to Buenos Aires, returning Thu, Nov 6, priced at $458 found 3 hours ago
LATAM Airlines Group
Mon, Oct 6 - Tue, Oct 7
SJO
San José
AEP
Buenos Aires
$460 Roundtrip, found 2 days ago
$460
Roundtrip
found 2 days ago
Select LATAM Airlines Group flight, departing Mon, Oct 6 from San José to Buenos Aires, returning Tue, Oct 7, priced at $460 found 2 days ago
Aeromexico
Mon, Oct 20 - Fri, Oct 24
SJO
San José
AEP
Buenos Aires
$497 Roundtrip, found 1 day ago
$497
Roundtrip
found 1 day ago
Select Aeromexico flight, departing Mon, Oct 20 from San José to Buenos Aires, returning Fri, Oct 24, priced at $497 found 1 day ago
avianca
Wed, Nov 26 - Thu, Dec 4
SJO
San José
AEP
Buenos Aires
$673 Roundtrip, just found
$673
Roundtrip
just found
Select avianca flight, departing Wed, Nov 26 from San José to Buenos Aires, returning Thu, Dec 4, priced at $673 just found

Alternative airports near Buenos Aires

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

Select flight to Ministro Pistarini Intl. EZE. Cheapest option available. Average driving time to city center is 25 minutes. Flights from $597
EZE
Ministro Pistarini Intl.
Cheapest
Average driving time to city center25 min
Flights from $597
Flights from San José (SJO) to Buenos Aires (AEP)
Origin airport
Juan Santamaría Intl.
Destination airport
Aeroparque Jorge Newbery
Airlines serving
GOL Linhas Aereas S.A., LATAM Airlines Group, avianca
Roundtrip price
$434
Distance
3510 mi

San José to Buenos Aires Flights

The cheapest times to fly from San José to Buenos Aires

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 Buenos Aires are during the month of October. You can find some of the cheapest flights from San José to Buenos Aires with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San José to Buenos Aires

Sunday is one of the best days to book for cheap flights from San José to Buenos Aires: 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 Buenos Aires

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 Buenos Aires in 2025. You can also book with separate airlines for your outbound and return journeys, from $196 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 Buenos Aires 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 Buenos Aires 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.

 

Frequently asked questions

How much does a flight from Juan Santamaria Intl. Airport (SJO) to Aeroparque Jorge Newbery Airport (AEP) cost?
Get a cheap one-way flight from $196 or cheap return flight from $435 from Juan Santamaria Intl. Airport (SJO) to Aeroparque Jorge Newbery Airport (AEP) 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 Juan Santamaria Intl. Airport (SJO) to Aeroparque Jorge Newbery Airport (AEP)?
Flying in October is a great way to save, as it's the cheapest month for flights between SJO and AEP. You'll typically find the lowest prices during the off-season.
What is the cheapest airline that flies from Juan Santamaria Intl. Airport (SJO) to Aeroparque Jorge Newbery Airport (AEP)?
To find the cheapest airline that'll fly you from SJO to AEP, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Juan Santamaria Intl. Airport (SJO) to Aeroparque Jorge Newbery Airport (AEP)?
Direct flights from Juan Santamaria Intl. Airport (SJO) to Aeroparque Jorge Newbery Airport (AEP) aren't available daily, so you'll need 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 AEP?
Generally you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can change based 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 Juan Santamaria Intl. Airport (SJO) to Aeroparque Jorge Newbery Airport (AEP)?
To avoid potential delays on the Juan Santamaria Intl. Airport (SJO) to Aeroparque Jorge Newbery Airport (AEP) route, aim to travel before 3 PM. Departures after this hour have a 22% higher chance of being 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 Juan Santamaria Intl. Airport (SJO) to Aeroparque Jorge Newbery Airport (AEP) last-minute?
Last-minute bookings from SJO to AEP are typically more expensive. To secure the cheapest rates, start searching for flights well in advance. That being said, if you're flexible with your travel plans, it's possible to land a cheap ticket right before you leave.
Is it cheaper to book a SJO to AEP flight and hotel package?
Compared with arranging hotels and flights separately, booking a SJO to AEP flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one place will take the hassle out of travel planning. Simply pick your flights and select from our extensive range of hotels, then tailor your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Juan Santamaria Intl. Airport (SJO) to Aeroparque Jorge Newbery Airport (AEP)?
In most instances, you can cancel or modify your SJO to AEP flight. However, there may be additional fees, especially if you booked over 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you want further details, go to our Customer Service portal.

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*Available to One Key members.