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

Return flights

01 Dec - 11 Dec	Jetstar
03 Dec - 10 Dec	Indonesia AirAsia
07 Dec - 15 Dec	Indonesia AirAsia
01 Dec - 13 Dec	Indonesia AirAsia
07 Dec - 14 Dec	Indonesia AirAsia
09 Dec - 20 Dec	Indonesia AirAsia
05 Dec - 14 Dec	Indonesia AirAsia
02 Dec - 09 Dec	AirAsia
03 Dec - 08 Dec	Jetstar
03 Dec - 11 Dec	Jetstar
08 Dec - 25 Jan	Jetstar
10 Dec - 31 Jan	TransNusa
31 Dec - 14 Jan	TransNusa
12 Dec - 31 Jan	TransNusa
10 Dec - 12 Jan	TransNusa
07 Dec - 26 Jan	Indonesia AirAsia
24 Dec - 20 Jan	TransNusa
14 Dec - 12 Jan	TransNusa
14 Dec - 13 Jan	Indonesia AirAsia
11 Dec - 09 Jan	TransNusa

Also check the deals for one-way flights from Perth to Seoul 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 Perth to Seoul in December from 363€

Return flights