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

Return flights

09 Sep - 24 Sep	flyadeal
11 Sep - 20 Sep	Pegasus Airlines
01 Sep - 14 Sep	Pegasus Airlines
06 Sep - 15 Sep	AJet
01 Sep - 09 Sep	Pegasus Airlines
05 Sep - 12 Sep	flyadeal
01 Sep - 12 Sep	Pegasus Airlines
30 Sep - 07 Oct	AJet
19 Sep - 25 Sep	AJet
26 Sep - 30 Sep	AJet
17 Sep - 24 Sep	Flynas
28 Sep - 07 Oct	flyadeal

Also check the deals for one-way flights from Riyadh to Oslo 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 Oslo in September from $332

Return flights