AirHint found the following cheapest return flights from San Jose (SJO) to Buenos Aires (AEP) in November 2025 (see full year).

Return flights

06 Nov - 13 Nov	LATAM Airlines Group
18 Nov - 25 Nov	GOL Linhas Aéreas
17 Nov - 22 Nov	LATAM Airlines Group
05 Nov - 12 Nov	LATAM Airlines Group
11 Nov - 28 Nov	Avianca
13 Nov - 20 Nov	Avianca
12 Nov - 16 Nov	LATAM Airlines Group
17 Nov - 27 Nov	Avianca
03 Nov - 13 Nov	Avianca
21 Nov - 23 Nov	LATAM Airlines Group
28 Nov - 06 Dec	Avianca
20 Nov - 10 Dec	Avianca
21 Nov - 09 Dec	Avianca
27 Nov - 10 Dec	Avianca
23 Nov - 01 Dec	Avianca
27 Nov - 16 Dec	Avianca
29 Nov - 06 Dec	Avianca
20 Nov - 28 Dec	Avianca

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

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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Cheapest return flights from San Jose to Buenos Aires in November from 411€

Return flights