AirHint found the following cheapest return flights from Seoul (GMP) to Sydney (SYD) in August 2026 (see full year).

Return flights

28 Aug - 08 Sep	Air China
12 Aug - 18 Aug	ANA
25 Aug - 30 Aug	Asiana Airlines
21 Aug - 30 Aug	Asiana Airlines
28 Aug - 05 Sep	Asiana Airlines
25 Aug - 01 Sep	ANA
26 Aug - 01 Sep	ANA
30 Aug - 06 Sep	Air China
27 Aug - 01 Sep	ANA
16 Aug - 22 Aug	Air China
23 Aug - 27 Aug	Air China
20 Aug - 31 Aug	Air China
20 Aug - 30 Aug	Air China
12 Aug - 19 Aug	ANA
18 Aug - 25 Aug	ANA
19 Aug - 25 Aug	ANA
27 Aug - 05 Sep	Air China
27 Aug - 03 Sep	Air China
30 Aug - 05 Sep	Air China
31 Aug - 04 Sep	ANA

Also check the deals for one-way flights from Seoul 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 Seoul to Sydney in August from $791

Return flights