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

Return flights

22 Sep - 24 Sep	Flynas
22 Sep - 28 Sep	Pegasus Airlines
22 Sep - 08 Oct	Flynas
29 Sep - 05 Oct	flyadeal
22 Sep - 30 Sep	flyadeal
30 Sep - 05 Oct	flyadeal
30 Sep - 06 Oct	flyadeal
26 Sep - 28 Sep	flyadeal
28 Sep - 05 Oct	flyadeal
28 Sep - 08 Oct	flyadeal
28 Sep - 01 Oct	flyadeal
26 Sep - 27 Sep	Etihad Airways
30 Sep - 02 Oct	flyadeal
30 Sep - 09 Oct	flyadeal
28 Sep - 09 Oct	flyadeal
26 Sep - 29 Sep	flyadeal
23 Sep - 28 Sep	flyadeal
24 Sep - 27 Sep	flyadeal
25 Sep - 28 Sep	Flynas
24 Sep - 29 Sep	flyadeal

Also check the deals for one-way flights from Riyadh to London 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 London in September from $417

Return flights