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

Return flights

13 May - 20 May	ANA
20 May - 26 May	ANA
11 May - 18 May	ANA
07 May - 19 May	ANA
20 May - 27 May	ANA
13 May - 19 May	ANA
13 May - 18 May	ANA
11 May - 20 May	ANA
11 May - 19 May	ANA
18 May - 27 May	ANA
19 May - 02 Jun	ANA
22 May - 02 Jun	Air China
21 May - 16 Jun	Asiana Airlines
30 May - 05 Jun	Asiana Airlines
30 May - 06 Jun	Air China
29 May - 06 Jun	Air China
29 May - 03 Jun	Asiana Airlines
31 May - 06 Jun	ANA
31 May - 07 Jun	ANA
30 May - 03 Jun	ANA

Also check the deals for one-way flights from Seoul to Sydney in May.

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 May from 537€

Return flights