AirHint found the following cheapest return flights from Seoul (ICN) to Singapore (SIN) in August 2026 (see full year).

Return flights

19 Aug - 26 Aug	Scoot	direct
23 Aug - 26 Aug	Scoot	direct
05 Aug - 12 Aug	Scoot	direct
19 Aug - 24 Aug	Scoot	direct
24 Aug - 27 Aug	Vietnam Airlines
31 Aug - 07 Sep	Vietnam Airlines
03 Aug - 10 Aug	Scoot	direct
31 Aug - 07 Sep	Scoot	direct
15 Aug - 17 Aug	Vietnam Airlines
18 Aug - 27 Aug	Vietnam Airlines
19 Aug - 22 Aug	Vietnam Airlines
15 Aug - 18 Aug	Vietnam Airlines

Also check the deals for one-way flights from Seoul to Singapore 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 Singapore in August from 178€

Return flights