Cheapest return flights from San Jose to Buenos Aires in May from 440€

AirHint found the following cheapest return flights from San Jose (SJO) to Buenos Aires (AEP) in May 2026 (see full year).

Return flights

04 May - 18 May LATAM Airlines Group
08 May - 18 May LATAM Airlines Group
09 May - 16 May LATAM Airlines Group
06 May - 13 May Avianca
11 May - 15 May Avianca
30 May - 13 Jun Avianca

Also check the deals for one-way flights from San Jose to Buenos Aires in May.

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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