AirHint found the following cheapest return flights from Buenos Aires (AEP) to San Jose (SJO) in September 2025 (see full year).
Return flights
| 20 Sep - 27 Sep | GOL Linhas Aéreas | ||
| 01 Sep - 10 Sep | Avianca | ||
| 01 Sep - 08 Sep | Avianca | ||
| 10 Sep - 17 Sep | Avianca | ||
| 12 Sep - 19 Sep | GOL Linhas Aéreas |
Also check the deals for one-way flights from Buenos Aires to San Jose in September.
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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