AirHint found the following cheapest one-way flights from Lima (LIM) to Buenos Aires (AEP) in March 2026 (see full year).

One-Way flights

28 Mar	JetSmart	direct
04 Mar	Sky Airline	direct
11 Mar	Sky Airline	direct
24 Mar	Sky Airline	direct
27 Mar	JetSmart	direct
23 Mar	JetSmart	direct
17 Mar	Sky Airline	direct
13 Mar	Aerolineas Argentinas	direct
15 Mar	Aerolineas Argentinas	direct
20 Mar	JetSmart

Also check the deals for return flights from Lima to Buenos Aires in March.

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 one-way flights from Lima to Buenos Aires in March from $127

One-Way flights