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

Return flights

02 Dec - 09 Dec	AirAsia X
02 Dec - 10 Dec	AirAsia X
01 Dec - 09 Dec	AirAsia X
01 Dec - 10 Dec	AirAsia X
02 Dec - 23 Dec	AirAsia X
23 Dec - 05 Jan	Thai Airways
22 Dec - 31 Dec	Thai Airways
24 Dec - 11 Jan	Thai Airways
23 Dec - 07 Jan	Thai Airways
23 Dec - 11 Jan	Thai Airways
16 Dec - 31 Dec	AirAsia X
16 Dec - 05 Jan	AirAsia X
16 Dec - 01 Jan	AirAsia X
16 Dec - 30 Dec	AirAsia X
16 Dec - 03 Jan	AirAsia X
16 Dec - 02 Jan	AirAsia X
25 Dec - 04 Jan	Thai Airways
25 Dec - 30 Dec	Cathay Pacific
23 Dec - 10 Jan	AirAsia X
16 Dec - 23 Dec	AirAsia X

Also check the deals for one-way flights from Osaka to Colombo 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 Colombo in December from $577

Return flights