AirHint found the following cheapest one-way flights from Osaka (ITM) to Colombo (CMB) in October 2025 (see full year).

One-Way flights

25 Oct	SriLankan Airlines
15 Oct	Japan Airlines
27 Oct	SriLankan Airlines
21 Oct	Japan Airlines
23 Oct	Japan Airlines
20 Oct	Japan Airlines
16 Oct	Japan Airlines
13 Oct	SriLankan Airlines
29 Oct	SriLankan Airlines
19 Oct	ANA

Also check the deals for return flights from Osaka to Colombo in October.

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 one-way flights from Osaka to Colombo in October from 482€

One-Way flights