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

Return flights

31 Oct - 10 Nov	Aegean Airlines
30 Oct - 04 Nov	KLM
30 Oct - 06 Nov	KLM
29 Oct - 17 Nov	KLM
29 Oct - 04 Nov	KLM
28 Oct - 27 Nov	British Airways
31 Oct - 06 Nov	KLM
28 Oct - 04 Nov	KLM
28 Oct - 11 Nov	KLM
29 Oct - 05 Nov	KLM
28 Oct - 31 Oct	KLM
26 Oct - 29 Oct	LOT
26 Oct - 27 Oct	LOT
27 Oct - 29 Oct	LOT
27 Oct - 31 Oct	LOT
30 Oct - 31 Oct	LOT
29 Oct - 31 Oct	LOT
25 Oct - 31 Oct	LOT
26 Oct - 28 Oct	Aegean Airlines
28 Oct - 30 Oct	Turkish Airlines

Also check the deals for one-way flights from London to Riyadh in October.

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 October from 391€

Return flights