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

Return flights

19 Sep - 28 Sep	Singapore Airlines
03 Sep - 06 Sep	Singapore Airlines
05 Sep - 13 Sep	Cathay Pacific
11 Sep - 20 Sep	Cathay Pacific
12 Sep - 21 Sep	Cathay Pacific
17 Sep - 24 Sep	Cathay Pacific
20 Sep - 27 Sep	Cathay Pacific
02 Sep - 05 Sep	Cathay Pacific
17 Sep - 26 Sep	Cathay Pacific
18 Sep - 26 Sep	Cathay Pacific

Also check the deals for one-way flights from Colombo to Tokyo 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 Colombo to Tokyo in September from $437

Return flights