AirHint found the following cheapest return flights from Mexico City (MEX) to Sydney (SYD) in August 2025 (see full year).

Return flights

15 Aug - 22 Aug	Volaris
11 Aug - 18 Aug	Volaris
11 Aug - 25 Aug	Viva
16 Aug - 23 Aug	Volaris
15 Aug - 07 Sep	Volaris
04 Aug - 15 Aug	Volaris
01 Aug - 29 Aug	Viva
17 Aug - 02 Sep	Aeromexico
26 Aug - 08 Sep	Aeromexico
07 Aug - 14 Aug	Aeromexico
02 Aug - 15 Aug	Volaris
05 Aug - 14 Aug	Volaris
04 Aug - 16 Aug	Volaris
14 Aug - 07 Sep	Viva
13 Aug - 07 Sep	Viva
20 Aug - 09 Sep	Air Canada
23 Aug - 23 Sep	Air Canada
21 Aug - 07 Sep	ANA

Also check the deals for one-way flights from Mexico City to Sydney in August.

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 Mexico City to Sydney in August from 901€

Return flights