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

Return flights

16 Oct - 19 Oct	Air China
13 Oct - 07 Nov	Air China
13 Oct - 20 Oct	Air China
25 Oct - 27 Oct	Air China
13 Oct - 06 Nov	Air China
26 Oct - 30 Oct	Air China
16 Oct - 26 Oct	Air China
20 Oct - 26 Oct	Air China
26 Oct - 31 Oct	Air China
18 Oct - 24 Oct	Air China
23 Oct - 27 Oct	Air China
02 Oct - 11 Oct	Air China
12 Oct - 07 Nov	Japan Airlines

Also check the deals for one-way flights from Seoul to Riyadh in October.

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 Riyadh in October from $537

Return flights