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

Return flights

20 Sep - 25 Oct	SalamAir
10 Sep - 17 Sep	SalamAir
27 Sep - 30 Oct	Fly Jinnah
09 Sep - 16 Sep	Fly Jinnah
06 Sep - 05 Oct	SalamAir
10 Sep - 02 Oct	SalamAir
14 Sep - 15 Sep	flydubai
21 Sep - 28 Sep	flydubai
20 Sep - 12 Oct	flydubai
27 Sep - 10 Oct	flydubai
26 Sep - 23 Oct	flydubai
20 Sep - 20 Sep	flydubai
07 Sep - 17 Sep	SalamAir
09 Sep - 08 Oct	SalamAir
10 Sep - 14 Sep	SalamAir
17 Sep - 17 Sep	Fly Jinnah
26 Sep - 12 Oct	Qatar Airways

Also check the deals for one-way flights from Islamabad to Tehran 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.

Book a cheap hotel in Tehran

Cheap car rent in Tehran

Cheapest return flights from Islamabad to Tehran in September from 339€

Return flights