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Cheapest one-way flights from Buenos Aires (AEP) to San Jose (SJO), December

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Dates, airline, and price
Dates	Airline	Price
16 Dec	Avianca
20 Dec	Avianca
09 Dec	LATAM Airlines Group
12 Dec	Avianca
10 Dec	Avianca
01 Dec	JetSmart
22 Dec	Avianca
26 Dec	JetSmart
29 Dec	Avianca

deals for return flights from Buenos Aires to San Jose in December.

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Updated Jul 19, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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Cheapest one-way flights from Buenos Aires (AEP) to San Jose (SJO), December

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