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

Return flights

07 Sep - 30 Sep	Wizz Air UK
06 Sep - 30 Sep	Wizz Air UK
01 Sep - 30 Sep	Wizz Air UK
29 Sep - 08 Oct	Wizz Air UK
09 Sep - 03 Oct	Wizz Air UK
05 Sep - 29 Sep	Wizz Air UK
13 Sep - 28 Sep	Wizz Air UK
28 Sep - 30 Sep	Wizz Air UK
06 Sep - 29 Sep	Wizz Air UK
08 Sep - 28 Sep	Wizz Air UK
04 Sep - 28 Sep	Wizz Air UK
15 Sep - 30 Sep	Wizz Air UK
05 Sep - 03 Oct	Wizz Air UK
22 Sep - 03 Oct	Wizz Air UK
28 Sep - 02 Oct	Wizz Air UK
29 Sep - 03 Oct	Wizz Air UK
18 Sep - 11 Oct	Wizz Air UK
30 Sep - 06 Oct	Wizz Air UK
27 Sep - 04 Oct	Wizz Air UK
30 Sep - 07 Oct	Wizz Air UK

Also check the deals for one-way flights from London to Riyadh 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 London to Riyadh in September from 166€

Return flights