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

Return flights

02 May - 10 May	Sky Airline
28 May - 02 Jun	JetSmart
28 May - 06 Jun	JetSmart
28 May - 09 Jun	JetSmart
28 May - 03 Jun	JetSmart
01 May - 09 May	JetSmart
14 May - 17 May	JetSmart
04 May - 06 May	JetSmart
04 May - 10 May	JetSmart
04 May - 16 May	JetSmart
01 May - 06 May	JetSmart
01 May - 10 May	JetSmart
01 May - 16 May	JetSmart
08 May - 10 May	JetSmart
12 May - 02 Jun	JetSmart
30 May - 02 Jun	JetSmart
30 May - 06 Jun	JetSmart
30 May - 09 Jun	JetSmart
30 May - 03 Jun	JetSmart
18 May - 02 Jun	JetSmart

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

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 May from $273

Return flights