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

Return flights

08 Dec - 16 Dec	Ryanair
08 Dec - 15 Dec	Ryanair
01 Dec - 08 Dec	Ryanair
01 Dec - 07 Dec	Ryanair
01 Dec - 12 Dec	Ryanair
08 Dec - 17 Dec	Ryanair
02 Dec - 16 Dec	Ryanair
01 Dec - 15 Dec	Ryanair
01 Dec - 10 Dec	Ryanair
08 Dec - 01 Jan	Air China
01 Dec - 12 Dec	T'way Air	direct
10 Dec - 28 Jan	Air China
01 Dec - 01 Jan	Air China
01 Dec - 24 Jan	Air China
08 Dec - 20 Jan	Air China
02 Dec - 13 Jan	Air China
09 Dec - 28 Jan	Air China
30 Dec - 13 Jan	Air China
28 Dec - 15 Jan	Air China
28 Dec - 28 Jan	Air China

Also check the deals for one-way flights from Frankfurt 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 Frankfurt to Seoul in December from 479€

Return flights