AirHint found the following cheapest one-way flights from Singapore (SIN) to Seoul (ICN) in August 2025 (see full year).

One-Way flights

25 Aug	Scoot Tigerair	direct
11 Aug	Scoot Tigerair	direct
13 Aug	Scoot Tigerair
24 Aug	AirAsia
29 Aug	Jeju Air	direct
05 Aug	Jeju Air	direct
18 Aug	Jeju Air	direct
30 Aug	Cebu Pacific
17 Aug	Shandong Airlines
16 Aug	Shandong Airlines

Also check the deals for return flights from Singapore 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 one-way flights from Singapore to Seoul in August from $126

One-Way flights