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

Return flights

21 Dec - 29 Dec	Air China
21 Dec - 04 Jan	Air China
22 Dec - 26 Dec	Korean Air
17 Dec - 31 Dec	Japan Airlines
17 Dec - 30 Dec	Japan Airlines
31 Dec - 11 Jan	Japan Airlines
17 Dec - 25 Dec	Japan Airlines
29 Dec - 08 Jan	Japan Airlines
31 Dec - 15 Jan	Japan Airlines
08 Dec - 15 Jan	Japan Airlines
17 Dec - 24 Dec	Japan Airlines
25 Dec - 31 Dec	Japan Airlines
22 Dec - 05 Jan	Japan Airlines
23 Dec - 30 Dec	Japan Airlines
02 Dec - 07 Dec	Japan Airlines
24 Dec - 28 Dec	Japan Airlines
24 Dec - 01 Jan	Japan Airlines
20 Dec - 11 Jan	Japan Airlines
21 Dec - 09 Jan	Japan Airlines
18 Dec - 04 Jan	Japan Airlines

Also check the deals for one-way flights from Seoul to Prague 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 Prague in December from 467€

Return flights