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

Return flights

31 Dec - 15 Jan	China Southern
31 Dec - 15 Jan	Asiana Airlines	direct
31 Dec - 11 Jan	Lufthansa	direct
31 Dec - 10 Jan	Asiana Airlines	direct
31 Dec - 05 Jan	T'way Air	direct
31 Dec - 02 Jan	T'way Air	direct
31 Dec - 31 Jan	Lufthansa	direct
31 Dec - 03 Jan	Lufthansa	direct

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

Book a cheap hotel in Frankfurt

Cheap car rent in Frankfurt

Cheapest return flights from Seoul to Frankfurt in December from $555

Return flights