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

Return flights

23 Apr - 25 Apr	ANA
07 Apr - 21 Apr	ANA
24 Apr - 30 Apr	ANA
25 Apr - 02 May	ANA
27 Apr - 03 May	ANA
08 Apr - 14 Apr	Asiana Airlines
30 Apr - 05 May	Asiana Airlines
30 Apr - 07 May	Asiana Airlines
30 Apr - 09 May	Asiana Airlines
30 Apr - 10 May	Asiana Airlines
01 Apr - 07 Apr	Asiana Airlines
02 Apr - 10 Apr	Asiana Airlines
04 Apr - 12 Apr	Asiana Airlines
02 Apr - 08 Apr	Asiana Airlines
27 Apr - 04 May	ANA
02 Apr - 05 Apr	Asiana Airlines
30 Apr - 04 May	ANA

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.

Book a cheap hotel in Sydney

Cheap car rent in Sydney

Cheapest return flights from Seoul to Sydney in April from $668

Return flights