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

Return flights

13 Jan - 19 Jan	Jeju Air
21 Jan - 21 Feb	China Eastern
01 Jan - 08 Jan	Jeju Air
22 Jan - 26 Jan	Japan Airlines
12 Jan - 19 Jan	Japan Airlines
28 Jan - 30 Jan	Japan Airlines
12 Jan - 28 Jan	Japan Airlines
23 Jan - 31 Jan	Japan Airlines
20 Jan - 27 Feb	Japan Airlines
22 Jan - 24 Jan	Japan Airlines
09 Jan - 22 Jan	Japan Airlines
09 Jan - 23 Jan	Japan Airlines
25 Jan - 04 Feb	Japan Airlines
22 Jan - 24 Feb	Japan Airlines
21 Jan - 08 Feb	Japan Airlines
15 Jan - 09 Feb	Japan Airlines
31 Jan - 08 Feb	Japan Airlines
29 Jan - 04 Feb	Japan Airlines
26 Jan - 19 Feb	Japan Airlines
27 Jan - 02 Feb	Japan Airlines

Also check the deals for one-way flights from Seoul to Jakarta 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 Jakarta in January from 409€

Return flights