AirHint found the following cheapest return flights from Seoul (ICN) to Perth (PER) in December 2025 (see full year).

Return flights

04 Dec - 15 Jan	AirAsia X
15 Dec - 11 Jan	AirAsia X
19 Dec - 06 Jan	VietJet Air
12 Dec - 18 Jan	Scoot
19 Dec - 16 Jan	Scoot
01 Dec - 04 Dec	Jeju Air
19 Dec - 05 Jan	VietJet Air
07 Dec - 18 Jan	Jeju Air
24 Dec - 20 Jan	Scoot
02 Dec - 04 Dec	Jeju Air
13 Dec - 31 Jan	Jeju Air
04 Dec - 06 Jan	Scoot
01 Dec - 03 Dec	Jeju Air
05 Dec - 07 Dec	Jeju Air
01 Dec - 07 Dec	Jeju Air
05 Dec - 09 Dec	Jeju Air
01 Dec - 08 Dec	Scoot
03 Dec - 05 Dec	Scoot
06 Dec - 08 Dec	Scoot
01 Dec - 06 Dec	Scoot

Also check the deals for one-way flights from Seoul to Perth in December.

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 December from $446

Return flights