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

Return flights

04 Sep - 11 Sep	Air India
03 Sep - 05 Sep	Air India
03 Sep - 10 Sep	Air India
23 Sep - 02 Oct	IndiGo
25 Sep - 05 Oct	Air India
20 Sep - 29 Sep	IndiGo
11 Sep - 14 Sep	Air India
04 Sep - 10 Sep	IndiGo
12 Sep - 06 Oct	IndiGo
01 Sep - 05 Sep	IndiGo
01 Sep - 03 Sep	IndiGo
02 Sep - 13 Sep	Air India
13 Sep - 20 Sep	Air India
30 Sep - 05 Oct	IndiGo
12 Sep - 01 Oct	Air India Express
12 Sep - 02 Oct	Air India Express
29 Sep - 03 Oct	IndiGo
17 Sep - 01 Oct	Air India Express
19 Sep - 01 Oct	Air India Express
17 Sep - 02 Oct	Air India Express

Also check the deals for one-way flights from Kolkata to Muscat 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 Muscat in September from $199

Return flights