Cheapest return flights from San Jose to Buenos Aires in September from 402€

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

Return flights

24 Sep - 07 Oct Avianca
12 Sep - 17 Sep Avianca
17 Sep - 21 Sep Avianca
10 Sep - 19 Sep Avianca
06 Sep - 13 Sep Avianca
15 Sep - 22 Sep Avianca
01 Sep - 11 Sep Avianca
18 Sep - 28 Sep Avianca
12 Sep - 25 Sep Avianca
10 Sep - 21 Sep Avianca
01 Sep - 08 Sep Avianca
17 Sep - 08 Oct Avianca
17 Sep - 02 Oct Avianca
17 Sep - 01 Oct Avianca

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

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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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