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

Return flights

29 Aug - 06 Sep	China Eastern
13 Aug - 20 Aug	Emirates
18 Aug - 25 Aug	Emirates
16 Aug - 20 Aug	Emirates
17 Aug - 29 Aug	Air China
18 Aug - 24 Aug	Emirates
16 Aug - 25 Aug	Emirates
05 Aug - 12 Aug	T'way Air
17 Aug - 24 Aug	Emirates
18 Aug - 23 Aug	LOT
30 Aug - 06 Sep	LOT
24 Aug - 31 Aug	Lufthansa
30 Aug - 07 Sep	Lufthansa

Also check the deals for one-way flights from Seoul to Bucharest 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 Bucharest in August from $779

Return flights