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

Return flights

11 Jan - 01 Feb	JetSmart
28 Jan - 01 Feb	JetSmart
28 Jan - 04 Feb	JetSmart
28 Jan - 13 Feb	JetSmart
11 Jan - 30 Jan	JetSmart
09 Jan - 30 Jan	JetSmart
28 Jan - 15 Feb	JetSmart
16 Jan - 01 Feb	JetSmart
16 Jan - 04 Feb	JetSmart
28 Jan - 06 Feb	JetSmart
29 Jan - 12 Feb	LATAM Airlines Group
11 Jan - 05 Feb	JetSmart
28 Jan - 30 Jan	JetSmart
27 Jan - 31 Jan	LATAM Airlines Group
16 Jan - 20 Jan	JetSmart
19 Jan - 26 Jan	LATAM Airlines Group
13 Jan - 23 Jan	LATAM Airlines Group
16 Jan - 30 Jan	JetSmart
14 Jan - 24 Jan	LATAM Airlines Group
18 Jan - 24 Jan	JetSmart

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 $564

Return flights