Cheapest return flights from San Jose to Buenos Aires in May from 403€

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

Return flights

28 May - 02 Jun LATAM Airlines Group
21 May - 24 May LATAM Airlines Group
01 May - 15 May LATAM Airlines Group
13 May - 20 May LATAM Airlines Group
02 May - 10 May Copa
28 May - 27 Jun Copa
27 May - 27 Jun Avianca
29 May - 27 Jun Avianca
30 May - 14 Jun LATAM Airlines Group
14 May - 21 May Avianca
08 May - 22 May Avianca
19 May - 24 May Avianca
17 May - 24 May Avianca
14 May - 23 May Avianca
22 May - 30 May Avianca
29 May - 12 Jun Avianca
29 May - 07 Jun Avianca

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

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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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