Cheapest one-way flights from San Jose to Buenos Aires in September from 200€

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

One-Way flights

24 Sep LATAM Airlines Group
29 Sep LATAM Airlines Group
08 Sep LATAM Airlines Group
06 Sep Avianca
16 Sep Avianca
19 Sep Avianca
21 Sep Avianca

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

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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