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

Return flights

10 Sep - 20 Sep	Gulf Air
23 Sep - 10 Oct	Gulf Air
21 Sep - 27 Oct	flyadeal
05 Sep - 05 Oct	flyadeal
20 Sep - 27 Sep	Gulf Air
15 Sep - 25 Sep	Gulf Air
19 Sep - 23 Sep	Gulf Air
11 Sep - 20 Sep	Gulf Air
11 Sep - 13 Oct	Gulf Air
05 Sep - 20 Sep	flyadeal
05 Sep - 28 Oct	flyadeal
05 Sep - 18 Oct	flyadeal
28 Sep - 15 Oct	flyadeal
14 Sep - 30 Sep	flyadeal
05 Sep - 07 Oct	flyadeal
26 Sep - 11 Oct	flyadeal
02 Sep - 31 Oct	SalamAir
20 Sep - 30 Sep	SalamAir
13 Sep - 23 Sep	Gulf Air
16 Sep - 25 Sep	Gulf Air

Also check the deals for one-way flights from Riyadh to Islamabad 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 Riyadh to Islamabad in September from 225€

Return flights