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

Return flights

30 Dec - 08 Jan	Air France
29 Dec - 09 Jan	Air France
29 Dec - 12 Jan	Air France
31 Dec - 11 Jan	Lufthansa
31 Dec - 09 Jan	Lufthansa
31 Dec - 07 Jan	Lufthansa
31 Dec - 12 Jan	Lufthansa
25 Dec - 20 Jan	China Southern
28 Dec - 09 Jan	KLM
31 Dec - 06 Jan	Lufthansa
23 Dec - 31 Dec	China Southern
22 Dec - 29 Dec	Air France
22 Dec - 31 Dec	Air France
23 Dec - 29 Dec	KLM
24 Dec - 31 Dec	Qatar Airways
27 Dec - 29 Dec	Turkish Airlines
25 Dec - 31 Dec	Xiamen Airlines
22 Dec - 26 Dec	Air France
25 Dec - 28 Dec	KLM
22 Dec - 28 Dec	Air France

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 503€

Return flights