AirHint found the following cheapest return flights from Lima (LIM) to Buenos Aires (AEP) in January 2026 (see full year).

Return flights

21 Jan - 22 Feb	Aerolineas Argentinas
06 Jan - 13 Jan	JetSmart
02 Jan - 13 Jan	JetSmart
07 Jan - 13 Jan	JetSmart
27 Jan - 07 Feb	JetSmart
27 Jan - 01 Feb	JetSmart
27 Jan - 11 Feb	JetSmart
27 Jan - 05 Feb	JetSmart
27 Jan - 15 Feb	JetSmart
27 Jan - 08 Feb	JetSmart
06 Jan - 11 Jan	JetSmart
06 Jan - 12 Jan	JetSmart
02 Jan - 05 Jan	JetSmart
09 Jan - 15 Jan	Aerolineas Argentinas
02 Jan - 11 Jan	JetSmart
02 Jan - 12 Jan	JetSmart
11 Jan - 17 Jan	JetSmart
15 Jan - 01 Feb	JetSmart
15 Jan - 05 Feb	JetSmart
24 Jan - 24 Feb	JetSmart

Also check the deals for one-way flights from Lima to Buenos Aires in January.

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 Lima to Buenos Aires in January from 323€

Return flights