AirHint found the following cheapest return flights from Frankfurt (FRA) to Seoul (ICN) in January 2026 (see full year).

Return flights

28 Jan - 20 Feb	Lufthansa	direct
10 Jan - 14 Feb	LOT
12 Jan - 25 Jan	Finnair
15 Jan - 29 Jan	Finnair
19 Jan - 28 Jan	Finnair
08 Jan - 22 Jan	Finnair
28 Jan - 18 Feb	Finnair
07 Jan - 22 Feb	Finnair
19 Jan - 22 Feb	Finnair
26 Jan - 08 Feb	Finnair
16 Jan - 31 Jan	Finnair
16 Jan - 30 Jan	Finnair
15 Jan - 29 Jan	Lufthansa	direct
12 Jan - 25 Jan	Lufthansa	direct
16 Jan - 30 Jan	Lufthansa	direct
19 Jan - 28 Jan	Lufthansa	direct
28 Jan - 18 Feb	Lufthansa	direct
07 Jan - 22 Feb	Lufthansa	direct
19 Jan - 22 Feb	Lufthansa	direct
26 Jan - 08 Feb	Lufthansa	direct

Also check the deals for one-way flights from Frankfurt to Seoul in January.

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 January from 457€

Return flights