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

Return flights

25 Mar - 10 Apr	JetSmart
25 Mar - 15 Apr	JetSmart
25 Mar - 27 Mar	JetSmart
22 Mar - 10 Apr	JetSmart
22 Mar - 27 Mar	JetSmart
22 Mar - 25 Mar	JetSmart
01 Mar - 20 Mar	JetSmart
29 Mar - 10 Apr	JetSmart
29 Mar - 15 Apr	JetSmart
11 Mar - 20 Mar	JetSmart
01 Mar - 15 Mar	JetSmart
11 Mar - 27 Mar	JetSmart
11 Mar - 25 Mar	JetSmart
25 Mar - 29 Mar	JetSmart
11 Mar - 15 Mar	JetSmart
30 Mar - 13 Apr	LATAM Airlines Group

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.

Book a cheap hotel in Buenos Aires

Cheap car rent in Buenos Aires

Cheapest return flights from Quito to Buenos Aires in March from $485

Return flights