AirHint found the following cheapest return flights from Sandakan (SDK) to Singapore (SIN) in July 2025 (see full year).

Return flights

29 Jul - 07 Aug	AirAsia
29 Jul - 08 Aug	AirAsia
29 Jul - 09 Aug	AirAsia
29 Jul - 04 Aug	AirAsia
29 Jul - 02 Aug	AirAsia
29 Jul - 12 Aug	AirAsia
29 Jul - 01 Aug	AirAsia
29 Jul - 19 Aug	AirAsia
29 Jul - 18 Aug	AirAsia
29 Jul - 31 Jul	AirAsia
29 Jul - 17 Aug	AirAsia
26 Jul - 31 Jul	AirAsia
27 Jul - 31 Jul	AirAsia

Also check the deals for one-way flights from Sandakan to Singapore in July.

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 Sandakan to Singapore in July from $195

Return flights