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

Return flights

25 Sep - 09 Oct	Etihad Airways
10 Sep - 10 Sep	Akasa Air
23 Sep - 30 Sep	Air India
28 Sep - 04 Oct	Air India
11 Sep - 16 Sep	Air India
01 Sep - 08 Sep	Air India
11 Sep - 16 Sep	Qatar Airways	direct
23 Sep - 30 Sep	Qatar Airways	direct
01 Sep - 08 Sep	Qatar Airways	direct
10 Sep - 10 Sep	Qatar Airways	direct
25 Sep - 09 Oct	Qatar Airways	direct
28 Sep - 04 Oct	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 $408

Return flights