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

Return flights

27 Sep - 25 Oct	VietJet Air
25 Sep - 02 Oct	Peach
30 Sep - 01 Oct	AirAsia X
30 Sep - 11 Oct	AirAsia X
30 Sep - 19 Oct	AirAsia X
30 Sep - 08 Oct	AirAsia X
30 Sep - 04 Oct	AirAsia X
29 Sep - 15 Oct	AirAsia X
08 Sep - 15 Sep	AirAsia X
30 Sep - 05 Oct	AirAsia X
30 Sep - 13 Oct	AirAsia X
16 Sep - 23 Sep	Scoot
17 Sep - 23 Sep	Scoot
05 Sep - 12 Sep	AirAsia X
05 Sep - 09 Sep	AirAsia X
23 Sep - 24 Sep	AirAsia X
10 Sep - 16 Sep	AirAsia X
22 Sep - 24 Sep	AirAsia X
10 Sep - 12 Sep	AirAsia X
29 Sep - 30 Sep	Thai AirAsia X

Also check the deals for one-way flights from Osaka to Colombo in September.

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 September from $457

Return flights