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

Return flights

29 Aug - 26 Sep	flyadeal
29 Aug - 19 Sep	flyadeal
30 Aug - 29 Sep	Gulf Air
26 Aug - 30 Sep	SalamAir
28 Aug - 29 Sep	Serene Air
24 Aug - 18 Sep	flyadeal
27 Aug - 25 Sep	Flynas
28 Aug - 13 Sep	Serene Air	direct
27 Aug - 25 Sep	PIA	direct
28 Aug - 29 Sep	PIA	direct
26 Aug - 30 Aug	SalamAir
26 Aug - 31 Aug	SalamAir
31 Aug - 31 Aug	flyadeal
24 Aug - 31 Aug	flyadeal	direct
24 Aug - 30 Aug	flyadeal
28 Aug - 31 Aug	Serene Air	direct
24 Aug - 29 Aug	flyadeal	direct
24 Aug - 26 Aug	flyadeal
26 Aug - 29 Aug	Flynas
26 Aug - 31 Aug	Flynas	direct

Also check the deals for one-way flights from Riyadh to Islamabad 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 Riyadh to Islamabad in August from $304

Return flights