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

Return flights

12 Jan - 26 Jan	ANA
13 Jan - 20 Jan	ANA
11 Jan - 17 Jan	Air China
01 Jan - 11 Jan	Air China
09 Jan - 15 Jan	Air China
09 Jan - 16 Jan	Air China
09 Jan - 23 Jan	Air China
01 Jan - 22 Jan	Air China
08 Jan - 22 Jan	Air China
05 Jan - 09 Jan	Air China
21 Jan - 03 Feb	Air China
29 Jan - 12 Feb	Air China
29 Jan - 03 Feb	Air China
01 Jan - 25 Feb	ANA
12 Jan - 10 Feb	Air China
19 Jan - 11 Feb	Air China
25 Jan - 09 Feb	Air China
30 Jan - 02 Feb	Air China
28 Jan - 04 Feb	Air China
25 Jan - 02 Feb	Air China

Also check the deals for one-way flights from Seoul to Sydney 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 Seoul to Sydney in January from $1053

Return flights