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

Return flights

18 Aug - 22 Aug	SriLankan Airlines
23 Aug - 30 Aug	SriLankan Airlines
15 Aug - 23 Aug	SriLankan Airlines
09 Aug - 20 Sep	Japan Airlines
11 Aug - 15 Aug	Malaysia Airlines
02 Aug - 11 Aug	SriLankan Airlines
09 Aug - 15 Aug	Japan Airlines
11 Aug - 25 Aug	SriLankan Airlines
16 Aug - 22 Aug	SriLankan Airlines
07 Aug - 15 Aug	Malaysia Airlines
09 Aug - 13 Aug	Japan Airlines
08 Aug - 03 Sep	Japan Airlines
21 Aug - 18 Sep	ANA
26 Aug - 09 Sep	ANA
21 Aug - 20 Sep	ANA

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

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 August from $1094

Return flights