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

Return flights

14 Oct - 23 Oct	Avianca
27 Oct - 03 Nov	Avianca
26 Oct - 06 Nov	Avianca	direct
27 Oct - 03 Nov	Avianca	direct
28 Oct - 08 Nov	Avianca
20 Oct - 24 Oct	Avianca
15 Oct - 19 Oct	Avianca
17 Oct - 26 Oct	Avianca
25 Oct - 12 Nov	Avianca
24 Oct - 08 Nov	Avianca
28 Oct - 04 Nov	Avianca
09 Oct - 20 Oct	Avianca
16 Oct - 19 Oct	Avianca
16 Oct - 20 Oct	Avianca
26 Oct - 10 Nov	Avianca
29 Oct - 05 Nov	Avianca
11 Oct - 20 Oct	LATAM Airlines Group
01 Oct - 08 Oct	JetSmart
03 Oct - 17 Oct	JetSmart
25 Oct - 09 Nov	Avianca

Also check the deals for one-way flights from Quito to Buenos Aires in October.

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 October from $457

Return flights