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

One-Way flights

25 Dec	Malaysia Airlines
24 Dec	Malaysia Airlines
03 Dec	Malaysia Airlines
28 Dec	Hainan Airlines
04 Dec	Malaysia Airlines
01 Dec	Malaysia Airlines
27 Dec	Malaysia Airlines
07 Dec	Hainan Airlines
23 Dec	Malaysia Airlines
29 Dec	Malaysia Airlines

Also check the deals for return flights from Singapore 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 Singapore to London in December from 238€

One-Way flights