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

Return flights

30 Sep - 08 Oct	Flynas
25 Sep - 03 Oct	Flynas
27 Sep - 04 Oct	Flynas
25 Sep - 04 Oct	Flynas
22 Sep - 25 Sep	AJet
13 Sep - 26 Sep	Flynas
23 Sep - 01 Oct	Flynas
26 Sep - 03 Oct	EgyptAir
12 Sep - 16 Sep	Flynas
12 Sep - 25 Sep	Pegasus Airlines
27 Sep - 10 Oct	Flynas
23 Sep - 29 Sep	Flynas
25 Sep - 30 Sep	Flynas
16 Sep - 26 Sep	Flynas
15 Sep - 30 Sep	Pegasus Airlines
16 Sep - 23 Sep	Flynas
17 Sep - 29 Sep	flyadeal
27 Sep - 05 Oct	Flynas
23 Sep - 02 Oct	Flynas
29 Sep - 06 Oct	Flynas

Also check the deals for one-way flights from Riyadh to Barcelona 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 Barcelona in September from 156€

Return flights