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

Return flights

18 Aug - 24 Aug	Lufthansa
26 Aug - 09 Sep	Emirates
27 Aug - 08 Sep	Emirates
26 Aug - 02 Sep	Emirates
26 Aug - 08 Sep	Emirates
19 Aug - 26 Aug	Emirates
21 Aug - 24 Aug	Lufthansa
27 Aug - 31 Aug	Emirates
12 Aug - 27 Aug	KLM
24 Aug - 31 Aug	Emirates
29 Aug - 08 Sep	Emirates
18 Aug - 23 Sep	Lufthansa
28 Aug - 31 Aug	Emirates
18 Aug - 28 Aug	Lufthansa
13 Aug - 19 Aug	Lufthansa
05 Aug - 12 Aug	KLM
29 Aug - 05 Sep	Qatar Airways
28 Aug - 06 Sep	Thai Airways
31 Aug - 07 Sep	Thai Airways
29 Aug - 06 Sep	Air France

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

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 August from 688€

Return flights