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

Return flights

10 Dec - 15 Dec	British Airways
22 Dec - 29 Dec	Aegean Airlines
15 Dec - 22 Dec	Aegean Airlines
09 Dec - 18 Dec	British Airways
17 Dec - 31 Dec	LOT
12 Dec - 05 Jan	Aegean Airlines
02 Dec - 03 Dec	LOT
18 Dec - 24 Dec	LOT
18 Dec - 02 Jan	LOT
20 Dec - 02 Jan	LOT
22 Dec - 31 Dec	LOT
24 Dec - 02 Jan	LOT
19 Dec - 26 Dec	British Airways
24 Dec - 07 Jan	LOT
22 Dec - 28 Dec	Aegean Airlines
26 Dec - 02 Jan	Aegean Airlines
19 Dec - 02 Jan	British Airways
18 Dec - 05 Jan	LOT
25 Dec - 03 Jan	Turkish Airlines
25 Dec - 01 Jan	Turkish Airlines

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

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 December from $483

Return flights