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

Return flights

17 Jul - 21 Jul	Hainan Airlines
11 Jul - 16 Jul	Iberia
14 Jul - 25 Aug	Ryanair
31 Jul - 14 Aug	Hainan Airlines
31 Jul - 03 Aug	Hainan Airlines
10 Jul - 16 Jul	Finnair
17 Jul - 31 Jul	Hainan Airlines
13 Jul - 27 Jul	Finnair
20 Jul - 03 Aug	Finnair
06 Jul - 13 Jul	Scandinavian Airlines
30 Jul - 06 Aug	Norwegian
20 Jul - 27 Jul	Norwegian Air Sweden AOC
09 Jul - 16 Jul	Norwegian
22 Jul - 27 Jul	Finnair
16 Jul - 31 Jul	Finnair
07 Jul - 06 Aug	Vueling Airlines
08 Jul - 07 Aug	KLM
06 Jul - 02 Aug	Norwegian

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

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 Oslo to Seoul in July from 773€

Return flights