Cheapest return flights from San Jose to Buenos Aires in April from 429€

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

Return flights

12 Apr - 15 Apr LATAM Airlines Group
08 Apr - 16 Apr LATAM Airlines Group
14 Apr - 24 Apr Copa
21 Apr - 30 Apr Copa
12 Apr - 20 Apr LATAM Airlines Group
07 Apr - 26 Apr Copa
24 Apr - 26 Apr Copa
17 Apr - 27 Apr Copa
17 Apr - 22 Apr Avianca
27 Apr - 19 May Avianca
20 Apr - 18 May Avianca
09 Apr - 22 Apr Avianca
29 Apr - 12 May Avianca
22 Apr - 02 May Avianca
29 Apr - 15 May Avianca
13 Apr - 08 May Avianca
29 Apr - 06 May Avianca
30 Apr - 11 May Avianca
24 Apr - 04 May Avianca
30 Apr - 05 May Avianca

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

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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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