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

Return flights

22 Jan - 27 Feb	Air China
18 Jan - 25 Feb	Scoot
30 Jan - 06 Feb	Hong Kong Airlines
17 Jan - 07 Feb	Air China
25 Jan - 08 Feb	Air China
15 Jan - 06 Feb	Air China
23 Jan - 23 Feb	Scoot
20 Jan - 21 Feb	Scoot
22 Jan - 19 Feb	Jetstar
15 Jan - 22 Jan	AirAsia X
22 Jan - 27 Feb	T'way Air	direct
23 Jan - 31 Jan	Hong Kong Airlines
13 Jan - 19 Jan	China Eastern
13 Jan - 20 Jan	AirAsia X
17 Jan - 26 Jan	AirAsia X
22 Jan - 30 Jan	Jetstar
20 Jan - 24 Jan	AirAsia X
26 Jan - 31 Jan	AirAsia X
22 Jan - 28 Jan	Air China
17 Jan - 24 Jan	AirAsia X

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 407€

Return flights