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

Return flights

24 Jan - 28 Feb	Jetstar	direct
19 Jan - 07 Feb	Scoot
23 Jan - 02 Feb	Scoot
26 Jan - 02 Feb	Scoot
22 Jan - 10 Feb	Jetstar
23 Jan - 27 Feb	Jetstar	direct
13 Jan - 04 Feb	Scoot
27 Jan - 03 Feb	Jetstar
19 Jan - 04 Feb	Cathay Pacific
29 Jan - 05 Feb	Cathay Pacific
25 Jan - 31 Jan	Scoot
25 Jan - 30 Jan	Scoot
27 Jan - 30 Jan	Scoot
22 Jan - 31 Jan	Jetstar	direct
23 Jan - 31 Jan	Jetstar	direct
19 Jan - 26 Jan	Scoot
22 Jan - 26 Jan	Cathay Pacific
12 Jan - 30 Jan	Scoot
25 Jan - 30 Jan	Jetstar	direct
15 Jan - 28 Jan	Jetstar	direct

Also check the deals for one-way flights from Sydney to Seoul in January.

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 Sydney to Seoul in January from $531

Return flights