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

One-Way flights

01 Dec	Aegean Airlines
15 Dec	Aegean Airlines
12 Dec	Aegean Airlines
10 Dec	LOT
18 Dec	Oman Air
04 Dec	Oman Air
10 Dec	Saudia	direct
15 Dec	Virgin Atlantic	direct
12 Dec	Saudia	direct
04 Dec	Saudia	direct

Also check the deals for return flights from Riyadh to London 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 one-way flights from Riyadh to London in December from $124

One-Way flights