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

Return flights

16 Aug - 23 Aug	Qantas
30 Aug - 06 Sep	Qantas
13 Aug - 27 Aug	Jetstar
13 Aug - 31 Aug	Delta
20 Aug - 30 Aug	Delta
15 Aug - 07 Sep	Delta
24 Aug - 22 Sep	Delta
18 Aug - 31 Aug	Delta
01 Aug - 13 Aug	Delta
26 Aug - 14 Sep	Delta
18 Aug - 08 Sep	Delta
03 Aug - 19 Sep	Delta
01 Aug - 08 Sep	Delta
22 Aug - 29 Aug	Delta
08 Aug - 15 Aug	Delta
28 Aug - 04 Sep	Delta
11 Aug - 17 Aug	Delta
30 Aug - 15 Sep	Delta
25 Aug - 14 Sep	Delta
20 Aug - 22 Aug	ANA

Also check the deals for one-way flights from Sydney to Mexico City 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 Sydney to Mexico City in August from 1099€

Return flights