AirHint found the following cheapest return flights from London (LGW) to Singapore (SIN) in December 2025 (see full year).

Return flights

07 Dec - 11 Dec	Air China
07 Dec - 12 Dec	China Eastern
04 Dec - 10 Dec	Wizz Air UK
04 Dec - 14 Dec	Wizz Air UK
07 Dec - 14 Dec	Wizz Air UK
04 Dec - 09 Dec	SWISS
04 Dec - 17 Dec	Wizz Air UK
03 Dec - 10 Dec	Wizz Air Malta
01 Dec - 10 Dec	Wizz Air Malta
01 Dec - 08 Dec	Air China
02 Dec - 31 Jan	SWISS
30 Dec - 13 Jan	Turkish Airlines
04 Dec - 09 Jan	Wizz Air UK
31 Dec - 13 Jan	Gulf Air
13 Dec - 14 Jan	easyJet
30 Dec - 20 Jan	Turkish Airlines
29 Dec - 19 Jan	Wizz Air UK
30 Dec - 21 Jan	Turkish Airlines
10 Dec - 12 Jan	Wizz Air Malta
29 Dec - 14 Jan	Wizz Air UK

Also check the deals for one-way flights from London to Singapore 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 Singapore in December from $565

Return flights