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

Return flights

03 Dec - 07 Dec	Air China
05 Dec - 09 Dec	Air China
05 Dec - 08 Dec	Air China
02 Dec - 05 Dec	Air China
03 Dec - 06 Dec	Air China
15 Dec - 18 Dec	Air China
01 Dec - 30 Dec	Air China
11 Dec - 14 Dec	Air China
10 Dec - 13 Dec	Air China
07 Dec - 11 Dec	Air China
25 Dec - 06 Jan	T'way Air
16 Dec - 05 Jan	AirAsia X
16 Dec - 04 Jan	AirAsia X
19 Dec - 08 Jan	AirAsia X
19 Dec - 05 Jan	AirAsia X
17 Dec - 05 Jan	Thai AirAsia X
15 Dec - 05 Jan	AirAsia X
16 Dec - 06 Jan	Thai AirAsia X
24 Dec - 13 Jan	Thai AirAsia X
22 Dec - 08 Jan	Thai AirAsia X

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