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

Return flights

04 Sep - 27 Sep	Etihad Airways
04 Sep - 19 Sep	Etihad Airways
05 Sep - 07 Sep	Etihad Airways
04 Sep - 11 Sep	flyadeal	direct
04 Sep - 06 Sep	flyadeal	direct
04 Sep - 19 Sep	Flynas	direct
04 Sep - 27 Sep	flyadeal	direct
04 Sep - 18 Sep	flyadeal	direct
04 Sep - 13 Sep	flyadeal	direct
30 Sep - 10 Oct	Flynas	direct
22 Sep - 25 Oct	flydubai
05 Sep - 25 Sep	flydubai
25 Sep - 04 Oct	flyadeal	direct
27 Sep - 04 Oct	flyadeal	direct

Also check the deals for one-way flights from Riyadh to Karachi 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 Karachi in September from $232

Return flights