AirHint found the following cheapest return flights from Ko Samui (USM) to Singapore (SIN) in August 2025 (see full year).

Return flights

01 Aug - 03 Aug	Scoot Tigerair	direct
26 Aug - 29 Aug	Scoot Tigerair	direct
08 Aug - 12 Aug	Scoot Tigerair	direct
27 Aug - 29 Aug	Scoot Tigerair	direct
06 Aug - 13 Aug	Scoot Tigerair	direct
25 Aug - 27 Aug	Scoot Tigerair	direct
23 Aug - 27 Aug	Scoot Tigerair	direct
19 Aug - 26 Aug	Bangkok Airways	direct
14 Aug - 17 Aug	Scoot Tigerair	direct
11 Aug - 18 Aug	Bangkok Airways

Also check the deals for one-way flights from Ko Samui 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 Ko Samui to Singapore in August from 240€

Return flights