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

Return flights

28 Mar - 31 Mar	Flybondi	direct
24 Mar - 31 Mar	Flybondi	direct
15 Mar - 21 Mar	Flybondi	direct
19 Mar - 26 Mar	Flybondi	direct
15 Mar - 23 Mar	Flybondi	direct
17 Mar - 21 Mar	Flybondi	direct
17 Mar - 23 Mar	Flybondi	direct
19 Mar - 24 Mar	Flybondi	direct
22 Mar - 28 Mar	Flybondi	direct
22 Mar - 24 Mar	Flybondi	direct
31 Mar - 09 Apr	Flybondi	direct

Also check the deals for one-way flights from Sao Paulo 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 Sao Paulo to Buenos Aires in March from 156€

Return flights