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

Return flights

09 Mar - 13 Mar	LATAM Airlines Group
13 Mar - 17 Mar	LATAM Airlines Group
08 Mar - 12 Mar	LATAM Airlines Group
12 Mar - 16 Mar	LATAM Airlines Group
11 Mar - 17 Mar	Copa
18 Mar - 25 Mar	Avianca
13 Mar - 25 Mar	Avianca

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

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 March from 538€

Return flights