AirHint found the following cheapest return flights from Seoul (GMP) to Jakarta (CGK) in December 2025 (see full year).

Return flights

08 Dec - 15 Dec	T'way Air
06 Dec - 13 Dec	Air China
16 Dec - 15 Jan	EVA Air
22 Dec - 31 Dec	Japan Airlines
24 Dec - 30 Dec	Japan Airlines
29 Dec - 12 Jan	Japan Airlines
18 Dec - 21 Dec	Japan Airlines
23 Dec - 28 Dec	Japan Airlines
21 Dec - 29 Dec	Japan Airlines
08 Dec - 12 Dec	Japan Airlines
24 Dec - 27 Dec	Japan Airlines
19 Dec - 26 Dec	Japan Airlines
10 Dec - 12 Jan	Japan Airlines
13 Dec - 12 Jan	Japan Airlines
30 Dec - 04 Jan	Japan Airlines
30 Dec - 03 Jan	Japan Airlines
20 Dec - 04 Jan	Japan Airlines
22 Dec - 12 Jan	Japan Airlines
12 Dec - 12 Jan	Japan Airlines
08 Dec - 25 Jan	Japan Airlines

Also check the deals for one-way flights from Seoul to Jakarta 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 Seoul to Jakarta in December from 395€

Return flights