Earn point on your loyalty program!arrow arc left

Cheap flights from San Jose (SJC) to Buenos Aires (AEP)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from San Jose (SJC) to Buenos Aires (AEP)

How to find the cheapest flight from San Jose (SJC) to Buenos Aires (AEP)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from San Jose (SJC) to Buenos Aires (AEP)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from San Jose (SJC) to Buenos Aires (AEP)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from San Jose to Buenos Aires in March , April 2026

16 Mar - 17 Apr $ 1,115.00
SJC
San Jose
Frontier Airlines
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Frontier Airlines
2 STOPS
SJC
San Jose
Pick dates
16 Mar - 27 Apr $ 1,121.00
SJC
San Jose
Frontier Airlines
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Frontier Airlines
2 STOPS
SJC
San Jose
Pick dates
16 Mar - 24 Apr $ 1,127.00
SJC
San Jose
Frontier Airlines
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Frontier Airlines
2 STOPS
SJC
San Jose
Pick dates

Last minute flights from San Jose to Buenos Aires

16 Mar - 01 Apr $ 1,350.00
SJC
San Jose
Hawaiian Airlines
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Hawaiian Airlines
3 STOPS
SJC
San Jose
Pick dates
16 Mar - 01 Apr $ 1,356.00
SJC
San Jose
Hawaiian Airlines
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Hawaiian Airlines
3 STOPS
SJC
San Jose
Pick dates
16 Mar - 01 Apr $ 1,458.00
SJC
San Jose
Alaska Airlines
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Alaska Airlines
3 STOPS
SJC
San Jose
Pick dates

One-way flights to Buenos Aires from San Jose

7:02 PM - 6:30 AM
Aerolineas Argentinas
3 Stops
32h 48m
SJC - AEP
$ 492
Kiwi
Pick dates
7:02 PM - 9:55 PM
JetSMART
3 Stops
29h 18m
SJC - AEP
$ 538
Kiwi
Pick dates
10:20 AM - 8:23 AM
LATAM Airlines
2 Stops
20h 10m
SJC - AEP
$ 562
Kiwi
Pick dates

How to find the cheapest flight from San Jose (SJC) to Buenos Aires (AEP)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from San Jose (SJC) to Buenos Aires (AEP)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from San Jose (SJC) to Buenos Aires (AEP)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.