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

Return flights

06 Apr - 20 Apr	ANA
06 Apr - 14 Apr	ANA
06 Apr - 15 Apr	ANA
08 Apr - 12 Apr	Air China
01 Apr - 09 Apr	Air China
08 Apr - 14 Apr	Air China
15 Apr - 07 May	Air China
29 Apr - 10 May	Air China
01 Apr - 30 Apr	ANA
02 Apr - 12 Apr	Asiana Airlines
29 Apr - 05 May	Air China
01 Apr - 05 May	Air China
01 Apr - 07 Apr	Air China
04 Apr - 11 Apr	Asiana Airlines
30 Apr - 06 May	Asiana Airlines
30 Apr - 08 May	Asiana Airlines
22 Apr - 12 May	Air China
29 Apr - 03 May	Air China
01 Apr - 06 May	ANA
23 Apr - 08 May	Asiana Airlines

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

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 April from 511€

Return flights