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

Return flights

05 Dec - 18 Dec	Hainan Airlines
01 Dec - 14 Dec	Hainan Airlines
01 Dec - 30 Dec	Air France
03 Dec - 08 Dec	KLM
01 Dec - 12 Dec	Air France
03 Dec - 17 Dec	KLM
29 Dec - 19 Jan	Finnair
12 Dec - 18 Dec	Hainan Airlines
12 Dec - 14 Jan	Finnair
17 Dec - 31 Dec	Finnair
12 Dec - 09 Jan	Finnair
01 Dec - 12 Dec	Korean Air	direct
03 Dec - 17 Dec	Korean Air	direct
30 Dec - 04 Jan	Finnair
28 Dec - 11 Jan	Finnair
28 Dec - 08 Jan	Finnair
28 Dec - 04 Jan	Ryanair
11 Dec - 04 Jan	Lufthansa
30 Dec - 04 Jan	Asiana Airlines	direct
25 Dec - 04 Jan	Asiana Airlines	direct

Also check the deals for one-way flights from Prague to Seoul 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 Prague to Seoul in December from 541€

Return flights