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

Return flights

10 Aug - 14 Aug	JetSmart
13 Aug - 22 Aug	JetSmart
10 Aug - 17 Aug	JetSmart
11 Aug - 18 Aug	JetSmart
13 Aug - 20 Aug	JetSmart
11 Aug - 16 Aug	JetSmart
20 Aug - 25 Aug	JetSmart
17 Aug - 24 Aug	JetSmart
22 Aug - 11 Sep	JetSmart
22 Aug - 04 Sep	JetSmart
20 Aug - 31 Aug	JetSmart
09 Aug - 16 Aug	LATAM Airlines Group
26 Aug - 01 Sep	LATAM Airlines Group

Also check the deals for one-way flights from Quito 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 Quito to Buenos Aires in August from 425€

Return flights