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

Return flights

01 Mar - 24 Mar	LATAM Airlines Group
13 Mar - 18 Apr	LATAM Airlines Group
26 Mar - 02 Apr	LATAM Airlines Group
22 Mar - 05 Apr	LATAM Airlines Group
08 Mar - 04 Apr	LATAM Airlines Group
09 Mar - 26 Mar	Avianca
09 Mar - 16 Mar	Avianca
01 Mar - 20 Mar	LATAM Airlines Group
14 Mar - 05 Apr	Aerolíneas Argentinas
04 Mar - 25 Mar	Aerolíneas Argentinas
01 Mar - 22 Mar	JetSmart
02 Mar - 24 Mar	JetSmart
29 Mar - 18 Apr	Flybondi
03 Mar - 08 Apr	LATAM Airlines Group
30 Mar - 18 Apr	Aerolíneas Argentinas
18 Mar - 17 Apr	GOL Linhas Aéreas
05 Mar - 25 Mar	Aerolíneas Argentinas
05 Mar - 22 Mar	Aerolíneas Argentinas
17 Mar - 22 Mar	GOL Linhas Aéreas

Also check the deals for one-way flights from Buenos Aires to Sydney 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 Buenos Aires to Sydney in March from $1611

Return flights