AirHint found the following cheapest return flights from Kolkata (CCU) to Tokyo (HND) in September 2025 (see full year).

Return flights

25 Sep - 01 Oct	Air India
20 Sep - 26 Sep	Thai Airways
23 Sep - 30 Sep	Air India
29 Sep - 14 Oct	Air India
25 Sep - 06 Oct	Air India
22 Sep - 06 Oct	Air India
27 Sep - 08 Oct	Air India
29 Sep - 08 Oct	Air India
28 Sep - 06 Oct	Air India
26 Sep - 06 Oct	Singapore Airlines
28 Sep - 02 Oct	Air India
24 Sep - 28 Sep	Emirates

Also check the deals for one-way flights from Kolkata 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 Kolkata to Tokyo in September from $873

Return flights