AirHint found the following cheapest return flights from Lyon (LYS) to Buenos Aires (AEP) in August 2025 (see full year).

Return flights

26 Aug - 08 Sep	easyJet
26 Aug - 09 Sep	easyJet
27 Aug - 06 Sep	LATAM Airlines Group
28 Aug - 06 Sep	LATAM Airlines Group
29 Aug - 06 Sep	Turkish Airlines
27 Aug - 05 Sep	LATAM Airlines Group
23 Aug - 30 Aug	TAP
31 Aug - 07 Sep	Transavia France
01 Aug - 23 Aug	Royal Air Maroc

Also check the deals for one-way flights from Lyon to Buenos Aires in August.

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 Lyon to Buenos Aires in August from $1426

Return flights