AirHint found the following cheapest return flights from Osaka (KIX) to Singapore (SIN) in December 2025 (see full year).

Return flights

01 Dec - 08 Dec	AirAsia X
08 Dec - 15 Dec	AirAsia X
12 Dec - 15 Dec	AirAsia X
10 Dec - 14 Dec	AirAsia X
12 Dec - 16 Dec	AirAsia X
09 Dec - 16 Dec	AirAsia X
05 Dec - 14 Dec	Xiamen Airlines
02 Dec - 09 Dec	Air China
04 Dec - 01 Jan	Air China
01 Dec - 09 Dec	AirAsia X
08 Dec - 11 Dec	AirAsia X
04 Dec - 10 Jan	Air China
10 Dec - 01 Jan	Air China
10 Dec - 02 Jan	Jeju Air
04 Dec - 02 Jan	Scoot	direct
25 Dec - 07 Jan	Jeju Air
27 Dec - 03 Jan	China Eastern
26 Dec - 06 Jan	Jeju Air
25 Dec - 03 Jan	Jeju Air
26 Dec - 02 Jan	Jeju Air

Also check the deals for one-way flights from Osaka to Singapore in December.

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 Osaka to Singapore in December from $234

Return flights