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

Return flights

05 Dec - 08 Dec	British Airways
02 Dec - 09 Dec	Eurowings
06 Dec - 14 Dec	Eurowings
01 Dec - 05 Dec	Eurowings
06 Dec - 13 Dec	Eurowings
09 Dec - 16 Dec	British Airways
01 Dec - 08 Dec	Aegean Airlines
02 Dec - 05 Dec	SWISS
08 Dec - 13 Dec	SWISS
22 Dec - 30 Dec	Aegean Airlines
26 Dec - 02 Jan	Aegean Airlines
18 Dec - 02 Jan	KLM
22 Dec - 02 Jan	Aegean Airlines
23 Dec - 02 Jan	British Airways
24 Dec - 07 Jan	LOT
12 Dec - 11 Jan	British Airways
11 Dec - 08 Jan	British Airways
17 Dec - 07 Jan	LOT
24 Dec - 02 Jan	British Airways
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 $433

Return flights