Cheapest return flights from Bangkok to Kolkata in September from $178

Best time to book flights for Bangkok (BKK) to Kolkata (CCU) flights at AirHint

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

Return flights

09 Sep - 20 Sep Thai AirAsia direct
09 Sep - 11 Sep Thai AirAsia direct
09 Sep - 18 Sep Thai AirAsia direct
09 Sep - 21 Sep Thai AirAsia direct
13 Sep - 20 Sep Thai AirAsia direct
04 Sep - 20 Sep Thai AirAsia direct
04 Sep - 11 Sep Thai AirAsia direct
12 Sep - 20 Sep Thai AirAsia direct
13 Sep - 18 Sep Thai AirAsia direct
13 Sep - 21 Sep Thai AirAsia direct
25 Sep - 08 Oct Thai AirAsia direct
21 Sep - 08 Oct Thai AirAsia direct
25 Sep - 12 Oct Thai AirAsia direct
25 Sep - 13 Oct Thai AirAsia direct
25 Sep - 09 Oct Thai AirAsia direct
21 Sep - 12 Oct Thai AirAsia direct
21 Sep - 09 Oct Thai AirAsia direct
25 Sep - 15 Oct Thai AirAsia direct
23 Sep - 08 Oct Thai AirAsia direct
23 Sep - 12 Oct Thai AirAsia direct

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