Cheapest one-way flights from San Jose to Buenos Aires in December from 208€

AirHint found the following cheapest one-way flights from San Jose (SJO) to Buenos Aires (AEP) in December 2025 (see full year).

One-Way flights

07 Dec LATAM Airlines Group
21 Dec Avianca
04 Dec Avianca
25 Dec Avianca
31 Dec Avianca
08 Dec Avianca
26 Dec Avianca

Also check the deals for return flights from San Jose to Buenos Aires in December.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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