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

Return flights

28 Aug - 14 Sep	British Airways
26 Aug - 22 Sep	Eurowings
31 Aug - 14 Sep	British Airways
27 Aug - 17 Sep	British Airways
26 Aug - 26 Sep	Eurowings
26 Aug - 30 Sep	Brussels Airlines
27 Aug - 01 Sep	Air France
31 Aug - 27 Sep	Turkish Airlines
20 Aug - 10 Sep	Aegean Airlines
18 Aug - 10 Sep	Aegean Airlines
18 Aug - 31 Aug	Aegean Airlines
27 Aug - 31 Aug	British Airways
26 Aug - 31 Aug	Brussels Airlines
19 Aug - 24 Aug	Air France
18 Aug - 24 Aug	Air France
20 Aug - 24 Aug	KLM
24 Aug - 31 Aug	LOT
12 Aug - 18 Aug	Air France
20 Aug - 25 Aug	KLM
13 Aug - 19 Aug	Air France

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

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 August from 360€

Return flights