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

Return flights

13 Jan - 19 Jan	Scandinavian Airlines
05 Jan - 12 Jan	Ryanair
08 Jan - 16 Jan	Scandinavian Airlines
04 Jan - 30 Jan	Pegasus Airlines
07 Jan - 14 Jan	Pegasus Airlines
31 Jan - 07 Feb	Ryanair
05 Jan - 09 Jan	Ryanair
14 Jan - 18 Jan	Finnair
05 Jan - 18 Jan	Finnair
15 Jan - 22 Jan	Finnair
16 Jan - 25 Jan	Finnair
23 Jan - 01 Feb	Finnair
30 Jan - 08 Feb	Finnair
31 Jan - 08 Feb	Finnair
31 Jan - 09 Feb	Finnair
26 Jan - 23 Feb	Vietnam Airlines
30 Jan - 10 Feb	Finnair
30 Jan - 10 Feb	Lufthansa	direct
23 Jan - 01 Feb	Lufthansa	direct
30 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 $738

Return flights