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

Return flights

16 Jan - 06 Feb	JetSmart
14 Jan - 23 Jan	JetSmart
09 Jan - 23 Jan	JetSmart
02 Jan - 23 Jan	JetSmart
14 Jan - 18 Jan	JetSmart
09 Jan - 14 Jan	JetSmart
09 Jan - 18 Jan	JetSmart
11 Jan - 23 Jan	JetSmart
02 Jan - 14 Jan	JetSmart
02 Jan - 18 Jan	JetSmart
14 Jan - 16 Jan	JetSmart
21 Jan - 06 Feb	JetSmart
21 Jan - 11 Feb	JetSmart
19 Jan - 02 Feb	Avianca
29 Jan - 02 Feb	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 489€

Return flights