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

Return flights

30 Apr - 07 May	AirAsia X
23 Apr - 07 May	AirAsia X
30 Apr - 10 May	AirAsia X
24 Apr - 30 Apr	AirAsia X
23 Apr - 19 May	AirAsia X
30 Apr - 05 May	AirAsia X
02 Apr - 27 Apr	AirAsia X
03 Apr - 17 Apr	AirAsia X
02 Apr - 26 Apr	AirAsia X
25 Apr - 03 May	Jeju Air
05 Apr - 18 Apr	AirAsia X
22 Apr - 01 May	VietJet Air
28 Apr - 04 May	AirAsia X
20 Apr - 23 Apr	Vietnam Airlines
05 Apr - 12 Apr	VietJet Air
29 Apr - 10 May	Vietnam Airlines
02 Apr - 28 Apr	Vietnam Airlines
29 Apr - 05 May	Vietnam Airlines
08 Apr - 30 Apr	Scoot
19 Apr - 26 Apr	VietJet Air

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 $344

Return flights