AirHint found the following cheapest return flights from Islamabad (ISB) to Dushanbe (DYU) in September 2025 (see full year).

Return flights

22 Sep - 26 Sep	flydubai
17 Sep - 24 Sep	flydubai
21 Sep - 25 Sep	flydubai
28 Sep - 01 Oct	flydubai
28 Sep - 04 Oct	flydubai
28 Sep - 05 Oct	flydubai
28 Sep - 06 Oct	flydubai
28 Sep - 07 Oct	flydubai
27 Sep - 09 Oct	flydubai
27 Sep - 03 Oct	flydubai
09 Sep - 10 Sep	flydubai
10 Sep - 17 Sep	flydubai
09 Sep - 01 Oct	flydubai
28 Sep - 08 Oct	Turkish Airlines
28 Sep - 09 Oct	Turkish Airlines

Also check the deals for one-way flights from Islamabad to Dushanbe 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 Islamabad to Dushanbe in September from 638€

Return flights