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

Return flights

08 Dec - 17 Dec	Etihad Airways
14 Dec - 04 Jan	flydubai
19 Dec - 10 Jan	Gulf Air
25 Dec - 04 Jan	Gulf Air
22 Dec - 22 Jan	Flynas
21 Dec - 03 Jan	Flynas	direct
15 Dec - 30 Dec	Gulf Air
18 Dec - 04 Jan	Flynas
15 Dec - 10 Jan	Gulf Air
24 Dec - 27 Dec	Flynas
22 Dec - 29 Dec	Flynas
23 Dec - 30 Dec	Flynas	direct
04 Dec - 31 Dec	Flynas	direct
22 Dec - 29 Dec	Flynas	direct
15 Dec - 30 Dec	Flynas	direct
22 Dec - 22 Jan	Flynas	direct
04 Dec - 26 Dec	Etihad Airways
26 Dec - 08 Jan	Gulf Air
18 Dec - 16 Jan	Gulf Air
25 Dec - 27 Dec	Flynas

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

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 December from 271€

Return flights