$279 Cheap Flights from San Juan (SJU) to Buenos Aires (AEP)

View $279 flight on Mon, Sep 8, 2025Opens in a new window

Popular airlines from Luis Munoz Marin Intl. Airport (SJU) to Buenos Aires (AEP-Aeroparque Jorge Newbery)

Cheap Flights from San Juan to Buenos Aires (SJU-AEP)

Prices were available within the past 7 days and start at $279 for one-way flights and $634 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

avianca
Mon, Sep 8 - Fri, Sep 26
SJU
San Juan
AEP
Buenos Aires
$634 Roundtrip, just found
$634
Roundtrip
just found
Select avianca flight, departing Mon, Sep 8 from San Juan to Buenos Aires, returning Fri, Sep 26, priced at $634 just found
avianca
Tue, Oct 28 - Wed, Nov 12
SJU
San Juan
AEP
Buenos Aires
$646 Roundtrip, just found
$646
Roundtrip
just found
Select avianca flight, departing Tue, Oct 28 from San Juan to Buenos Aires, returning Wed, Nov 12, priced at $646 just found
avianca
Tue, Oct 28 - Wed, Nov 12
SJU
San Juan
AEP
Buenos Aires
$660 Roundtrip, found 2 hours ago
$660
Roundtrip
found 2 hours ago
Select avianca flight, departing Tue, Oct 28 from San Juan to Buenos Aires, returning Wed, Nov 12, priced at $660 found 2 hours ago
avianca
Tue, Oct 28 - Wed, Nov 12
SJU
San Juan
AEP
Buenos Aires
$668 Roundtrip, found 2 days ago
$668
Roundtrip
found 2 days ago
Select avianca flight, departing Tue, Oct 28 from San Juan to Buenos Aires, returning Wed, Nov 12, priced at $668 found 2 days ago
avianca
Tue, Oct 7 - Sat, Oct 18
SJU
San Juan
AEP
Buenos Aires
$678 Roundtrip, found 10 hours ago
$678
Roundtrip
found 10 hours ago
Select avianca flight, departing Tue, Oct 7 from San Juan to Buenos Aires, returning Sat, Oct 18, priced at $678 found 10 hours ago
avianca
Fri, Oct 24 - Fri, Oct 31
SJU
San Juan
AEP
Buenos Aires
$687 Roundtrip, just found
$687
Roundtrip
just found
Select avianca flight, departing Fri, Oct 24 from San Juan to Buenos Aires, returning Fri, Oct 31, priced at $687 just found
avianca
Fri, Oct 3 - Sun, Oct 5
SJU
San Juan
AEP
Buenos Aires
$713 Roundtrip, found 4 days ago
$713
Roundtrip
found 4 days ago
Select avianca flight, departing Fri, Oct 3 from San Juan to Buenos Aires, returning Sun, Oct 5, priced at $713 found 4 days ago
Delta
Tue, Oct 7 - Sat, Oct 18
SJU
San Juan
AEP
Buenos Aires
$752 Roundtrip, found 10 hours ago
$752
Roundtrip
found 10 hours ago
Select Delta flight, departing Tue, Oct 7 from San Juan to Buenos Aires, returning Sat, Oct 18, priced at $752 found 10 hours ago
American Airlines
Tue, Oct 7 - Tue, Oct 14
SJU
San Juan
AEP
Buenos Aires
$825 Roundtrip, just found
$825
Roundtrip
just found
Select American Airlines flight, departing Tue, Oct 7 from San Juan to Buenos Aires, returning Tue, Oct 14, priced at $825 just found
Air Canada
Sat, Nov 22 - Fri, Nov 28
SJU
San Juan
AEP
Buenos Aires
$2,290 Roundtrip, found 6 days ago
$2,290
Roundtrip
found 6 days ago
Select Air Canada flight, departing Sat, Nov 22 from San Juan to Buenos Aires, returning Fri, Nov 28, priced at $2,290 found 6 days ago

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 $616
EZE
Ministro Pistarini Intl.
Cheapest
Average driving time to city center25 min
Flights from $616
Flights from San Juan (SJU) to Buenos Aires (AEP)
Origin airport
Luis Munoz Marin Intl.
Destination airport
Aeroparque Jorge Newbery
Airlines serving
avianca
Roundtrip price
$633
Distance
3695 mi

San Juan to Buenos Aires Flights

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

 

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

Sunday is one of the best days to book for cheap flights from San Juan 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 Juan 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 Juan to Buenos Aires in 2025. You can also book with separate airlines for your outbound and return journeys, from $279 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 Juan 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 Juan 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 Luis Munoz Marin Intl. Airport (SJU) to Aeroparque Jorge Newbery Airport (AEP) cost?
Secure a cheap one-way flight from $279 or cheap return flight from $634 from Luis Munoz Marin Intl. Airport (SJU) 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 Luis Munoz Marin Intl. Airport (SJU) to Aeroparque Jorge Newbery Airport (AEP)?
Traveling in September may help you find better deals, as it's the cheapest month for flights between SJU and AEP. You'll typically find the lowest prices during the off-season.
What is the cheapest airline that flies from Luis Munoz Marin Intl. Airport (SJU) to Aeroparque Jorge Newbery Airport (AEP)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll take you from SJU to AEP. Then, sort your results by "Price (lowest to highest)" to snag a good deal.
How many flights per day from Luis Munoz Marin Intl. Airport (SJU) to Aeroparque Jorge Newbery Airport (AEP)?
There aren't any daily nonstop flights departing from Luis Munoz Marin Intl. Airport (SJU) to Aeroparque Jorge Newbery Airport (AEP). But you can book flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from SJU to AEP?
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 carrier 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 Luis Munoz Marin Intl. Airport (SJU) to Aeroparque Jorge Newbery Airport (AEP)?
To avoid potential delays on the Luis Munoz Marin Intl. Airport (SJU) to Aeroparque Jorge Newbery Airport (AEP) route, fly before 3 PM. Departures after this time 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 Luis Munoz Marin Intl. Airport (SJU) to Aeroparque Jorge Newbery Airport (AEP) last-minute?
Booking your ticket from SJU to AEP shortly before your getaway is typically more expensive. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a SJU to AEP flight and hotel package?
Compared with arranging flights and hotels separately, booking a SJU to AEP flight and hotel package with Expedia could result in significant savings. What's more, having it all in one place will take the hassle out of planning your trip. Just secure your flights and choose from our extensive range of hotels, then tailor your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Luis Munoz Marin Intl. Airport (SJU) to Aeroparque Jorge Newbery Airport (AEP)?
If you reserved your SJU to AEP 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 purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you want more information.

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*Available to One Key members.