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

Return flights

21 Aug - 28 Aug	Copa
24 Aug - 28 Aug	Copa
25 Aug - 29 Aug	Avianca
27 Aug - 03 Sep	Avianca
26 Aug - 29 Aug	Avianca
28 Aug - 05 Sep	Avianca
24 Aug - 02 Sep	Avianca
24 Aug - 03 Sep	Avianca	direct
23 Aug - 27 Aug	Avianca	direct
28 Aug - 06 Sep	Avianca
23 Aug - 25 Aug	Avianca	direct
21 Aug - 25 Aug	Avianca	direct
30 Aug - 03 Sep	Avianca	direct
23 Aug - 28 Aug	Avianca
23 Aug - 30 Aug	Avianca
26 Aug - 29 Aug	Avianca	direct
30 Aug - 07 Sep	Avianca
19 Aug - 01 Sep	Avianca
19 Aug - 01 Sep	Avianca	direct
22 Aug - 04 Sep	Copa

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 444€

Return flights