Cheapest return flights from Kolkata to Bangkok in September from $159

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

Return flights

23 Sep - 27 Sep Thai Lion Air direct
23 Sep - 26 Sep Thai Lion Air direct
22 Sep - 29 Sep Thai AirAsia direct
22 Sep - 26 Sep Thai AirAsia direct
22 Sep - 27 Sep Thai AirAsia direct
21 Sep - 28 Sep Thai AirAsia direct
23 Sep - 29 Sep Thai AirAsia direct
21 Sep - 24 Oct Thai AirAsia direct
21 Sep - 26 Sep Thai AirAsia direct
21 Sep - 27 Sep Thai AirAsia direct
21 Sep - 29 Sep Thai AirAsia direct
22 Sep - 01 Oct Thai AirAsia direct
23 Sep - 01 Oct Thai AirAsia direct
21 Sep - 01 Oct Thai AirAsia direct
30 Sep - 20 Oct Thai AirAsia direct
22 Sep - 11 Oct Thai AirAsia direct
23 Sep - 11 Oct Thai AirAsia direct
21 Sep - 11 Oct Thai AirAsia direct
30 Sep - 01 Oct Thai AirAsia direct
30 Sep - 19 Oct Thai AirAsia direct

Also check the deals for one-way flights from Kolkata to Bangkok in September.

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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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