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

Return flights

12 Jan - 21 Jan	Ryanair
12 Jan - 26 Jan	Ryanair
12 Jan - 24 Jan	Ryanair
11 Jan - 30 Jan	Ryanair
12 Jan - 31 Jan	Ryanair
22 Jan - 28 Jan	China Southern
15 Jan - 21 Jan	China Southern
17 Jan - 24 Jan	Ryanair
18 Jan - 29 Jan	Ryanair
19 Jan - 06 Feb	T'way Air	direct
12 Jan - 25 Jan	Ryanair
27 Jan - 06 Feb	Ryanair
26 Jan - 09 Feb	Ryanair
18 Jan - 16 Feb	Ryanair
31 Jan - 09 Feb	Ryanair
19 Jan - 01 Feb	Ryanair
29 Jan - 01 Feb	China Southern
12 Jan - 01 Feb	Ryanair
07 Jan - 06 Feb	T'way Air	direct
21 Jan - 18 Feb	T'way Air	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 $514

Return flights