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

Return flights

12 Jan - 26 Jan	Ryanair
11 Jan - 25 Jan	Pegasus Airlines
12 Jan - 19 Jan	Ryanair
05 Jan - 16 Feb	Finnair
20 Jan - 01 Feb	Finnair
07 Jan - 22 Feb	Finnair
05 Jan - 18 Jan	Finnair
07 Jan - 14 Jan	Finnair
02 Jan - 16 Jan	Finnair
06 Jan - 20 Jan	Finnair
05 Jan - 19 Jan	Finnair
09 Jan - 23 Jan	Finnair
07 Jan - 21 Jan	Finnair
09 Jan - 06 Feb	Finnair
18 Jan - 01 Feb	Finnair
19 Jan - 02 Feb	Finnair
09 Jan - 01 Feb	Finnair
05 Jan - 16 Feb	Lufthansa	direct
31 Jan - 07 Feb	Lufthansa	direct
18 Jan - 01 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 591€

Return flights