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

Return flights

17 Nov - 27 Nov	Avianca
16 Nov - 23 Nov	LATAM Airlines Group
14 Nov - 21 Nov	Avianca
14 Nov - 22 Nov	Avianca
04 Nov - 12 Nov	Avianca
21 Nov - 09 Dec	Avianca
09 Nov - 15 Nov	Avianca
08 Nov - 15 Nov	Avianca
04 Nov - 13 Nov	Avianca
19 Nov - 26 Nov	Avianca
13 Nov - 26 Nov	Avianca
18 Nov - 06 Dec	Avianca
19 Nov - 03 Dec	Avianca
20 Nov - 10 Dec	Avianca
27 Nov - 03 Dec	Avianca
23 Nov - 01 Dec	Avianca
26 Nov - 07 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 476€

Return flights