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

Return flights

03 Aug - 09 Aug	Flynas	direct
04 Aug - 11 Aug	Flynas	direct
10 Aug - 16 Aug	Flynas	direct
04 Aug - 25 Aug	Flynas	direct
04 Aug - 05 Aug	Flynas	direct
02 Aug - 16 Aug	Flynas	direct
06 Aug - 10 Aug	Flynas	direct
05 Aug - 05 Sep	Flynas
10 Aug - 02 Sep	Flynas	direct
16 Aug - 16 Aug	Flynas	direct
16 Aug - 23 Aug	Flynas	direct
01 Aug - 06 Aug	PIA
05 Aug - 05 Sep	Flynas	direct

Also check the deals for one-way flights from Islamabad to Riyadh in August.

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 Riyadh in August from 251€

Return flights