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

Return flights

10 Sep - 08 Oct	Air India
21 Sep - 26 Sep	Air India
10 Sep - 09 Oct	Air India
27 Sep - 06 Oct	Air India
15 Sep - 18 Sep	Air India
25 Sep - 11 Oct	Air India
08 Sep - 08 Oct	IndiGo
09 Sep - 08 Oct	IndiGo
28 Sep - 04 Oct	Air India
09 Sep - 09 Oct	IndiGo
27 Sep - 26 Oct	Air India
11 Sep - 19 Sep	Air India
08 Sep - 15 Sep	Air India
07 Sep - 13 Sep	Air India
07 Sep - 12 Sep	Air India
07 Sep - 18 Sep	Air India
05 Sep - 14 Sep	Air India
06 Sep - 01 Oct	Air India
11 Sep - 19 Sep	Qatar Airways	direct
15 Sep - 18 Sep	Qatar Airways	direct

Also check the deals for one-way flights from Kolkata to Doha 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 Doha in September from $387

Return flights