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

Return flights

25 Aug - 08 Sep	IndiGo
28 Aug - 08 Sep	China Southern
14 Aug - 24 Aug	China Southern
17 Aug - 24 Aug	China Eastern
10 Aug - 16 Aug	China Eastern
15 Aug - 03 Sep	China Eastern
20 Aug - 03 Sep	China Eastern
21 Aug - 28 Aug	China Southern
09 Aug - 16 Aug	China Eastern
01 Aug - 09 Aug	China Eastern
01 Aug - 10 Aug	China Eastern
22 Aug - 19 Sep	China Eastern
04 Aug - 11 Aug	Flynas
22 Aug - 20 Sep	Flynas
26 Aug - 30 Aug	Flynas
06 Aug - 18 Aug	Flynas
28 Aug - 09 Sep	Philippine Airlines
31 Aug - 11 Sep	Philippine Airlines

Also check the deals for one-way flights from Riyadh to Seoul 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 Riyadh to Seoul in August from $432

Return flights