AirHint found the following cheapest return flights from Foz Do Iguacu (IGU) to Buenos Aires (AEP) in August 2025 (see full year).

Return flights

08 Aug - 16 Aug	JetSmart
29 Aug - 04 Sep	JetSmart
23 Aug - 30 Aug	GOL Linhas Aéreas
21 Aug - 25 Aug	GOL Linhas Aéreas
07 Aug - 21 Aug	JetSmart
15 Aug - 04 Sep	JetSmart
08 Aug - 10 Aug	JetSmart
08 Aug - 28 Aug	JetSmart
31 Aug - 04 Sep	JetSmart
10 Aug - 16 Aug	GOL Linhas Aéreas
28 Aug - 04 Sep	JetSmart
04 Aug - 20 Aug	GOL Linhas Aéreas
10 Aug - 21 Aug	JetSmart
07 Aug - 23 Aug	JetSmart
29 Aug - 13 Sep	JetSmart
31 Aug - 13 Sep	JetSmart
28 Aug - 13 Sep	JetSmart

Also check the deals for one-way flights from Foz Do Iguacu 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 Foz Do Iguacu to Buenos Aires in August from 246€

Return flights