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

Return flights

03 Dec - 09 Dec	Air France
02 Dec - 11 Dec	Lufthansa
22 Dec - 31 Dec	Lufthansa
23 Dec - 30 Dec	Lufthansa
03 Dec - 11 Dec	Air France
09 Dec - 24 Dec	Lufthansa
25 Dec - 03 Jan	Lufthansa
26 Dec - 02 Jan	Lufthansa
23 Dec - 02 Jan	Lufthansa
22 Dec - 31 Jan	Lufthansa
24 Dec - 30 Dec	Turkish Airlines
23 Dec - 01 Jan	Lufthansa
25 Dec - 28 Dec	Lufthansa
24 Dec - 03 Jan	Finnair
19 Dec - 28 Dec	Lufthansa
19 Dec - 25 Dec	Scandinavian Airlines

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

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Cheapest return flights from Seoul to Oslo in December from 510€

Return flights