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

Return flights

26 Aug - 02 Sep	T'way Air
21 Aug - 01 Sep	Japan Airlines
21 Aug - 02 Sep	Japan Airlines
27 Aug - 01 Sep	Japan Airlines
22 Aug - 02 Sep	Japan Airlines
21 Aug - 26 Aug	Japan Airlines
20 Aug - 27 Aug	Japan Airlines
20 Aug - 28 Aug	Japan Airlines
21 Aug - 28 Aug	Japan Airlines
28 Aug - 31 Aug	Japan Airlines
27 Aug - 30 Aug	Japan Airlines
29 Aug - 08 Sep	Japan Airlines
29 Aug - 09 Sep	Japan Airlines
29 Aug - 06 Sep	Japan Airlines
29 Aug - 07 Sep	Japan Airlines

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.

Book a cheap hotel in Oslo

Cheap car rent in Oslo

Cheapest return flights from Seoul to Oslo in August from 793€

Return flights