AirHint found the following cheapest return flights from Quito (UIO) to Buenos Aires (AEP) in January 2026 (see full year).

Return flights

21 Jan - 04 Feb	Avianca
28 Jan - 13 Feb	JetSmart
30 Jan - 06 Feb	JetSmart
28 Jan - 04 Feb	JetSmart
28 Jan - 11 Feb	JetSmart
28 Jan - 15 Feb	JetSmart
23 Jan - 13 Feb	JetSmart
25 Jan - 07 Feb	LATAM Airlines Group
20 Jan - 31 Jan	Avianca
25 Jan - 13 Feb	JetSmart
23 Jan - 04 Feb	JetSmart
22 Jan - 31 Jan	LATAM Airlines Group
19 Jan - 23 Jan	Avianca
22 Jan - 29 Jan	LATAM Airlines Group
19 Jan - 26 Jan	Avianca
23 Jan - 27 Jan	LATAM Airlines Group
22 Jan - 26 Jan	LATAM Airlines Group
21 Jan - 23 Jan	JetSmart
22 Jan - 25 Jan	Avianca

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

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 January from 640€

Return flights