AirHint found the following cheapest return flights from Seoul (ICN) to Perth (PER) in April 2026 (see full year).

Return flights

04 Apr - 11 Apr	Scoot Tigerair
27 Apr - 15 May	AirAsia X
20 Apr - 05 May	AirAsia X
14 Apr - 16 Apr	AirAsia X
27 Apr - 05 May	AirAsia X
20 Apr - 01 May	AirAsia X
16 Apr - 05 May	AirAsia X
03 Apr - 16 Apr	AirAsia X
27 Apr - 01 May	AirAsia X
18 Apr - 05 May	AirAsia X
14 Apr - 05 May	AirAsia X
16 Apr - 01 May	AirAsia X
14 Apr - 01 May	AirAsia X
03 Apr - 08 Apr	Scoot Tigerair
20 Apr - 28 Apr	AirAsia X
04 Apr - 16 Apr	AirAsia X
03 Apr - 10 Apr	AirAsia X
27 Apr - 28 Apr	AirAsia X
16 Apr - 28 Apr	AirAsia X
16 Apr - 21 Apr	AirAsia X

Also check the deals for one-way flights from Seoul to Perth 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 Perth in April from $463

Return flights