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 - 12 Dec	Smart Wings
01 Dec - 13 Dec	Ryanair
01 Dec - 30 Dec	Hainan Airlines
15 Dec - 30 Dec	Hainan Airlines
01 Dec - 25 Jan	Hainan Airlines
03 Dec - 10 Dec	KLM
08 Dec - 14 Dec	KLM
05 Dec - 13 Dec	KLM
04 Dec - 10 Dec	Scandinavian Airlines
01 Dec - 02 Dec	Hainan Airlines
25 Dec - 09 Jan	Smart Wings
29 Dec - 08 Jan	Finnair
26 Dec - 07 Jan	Smart Wings
23 Dec - 01 Jan	Austrian Airlines
28 Dec - 04 Jan	Asiana Airlines	direct
12 Dec - 09 Jan	Finnair
18 Dec - 11 Jan	Finnair
14 Dec - 10 Jan	Air France
22 Dec - 03 Jan	Transavia France

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 539€

Return flights