Cheapest return flights from Oslo to Seoul in September from $622

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

Return flights

09 Sep - 15 Sep Hainan Airlines
25 Sep - 10 Oct Hainan Airlines
14 Sep - 21 Sep Norwegian
16 Sep - 19 Oct SWISS
16 Sep - 23 Sep Norwegian
02 Sep - 15 Sep Norwegian Air Sweden AOC
16 Sep - 20 Sep Scandinavian Airlines
03 Sep - 17 Sep Norwegian
07 Sep - 20 Sep Ryanair
04 Sep - 18 Sep Ryanair
30 Sep - 15 Oct KLM
15 Sep - 19 Sep Ryanair
28 Sep - 05 Oct Finnair
25 Sep - 05 Oct Finnair

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

Skyscanner

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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