AirHint found the following cheapest return flights from London (LON) to Singapore (SIN) in December 2026 (see full year).

Return flights

03 Dec - 31 Dec	Air China
03 Dec - 07 Dec	easyJet
01 Dec - 07 Dec	Lufthansa
03 Dec - 05 Dec	Wizz Air UK
07 Dec - 14 Dec	Lufthansa
02 Dec - 07 Jan	Air China
05 Dec - 31 Dec	KLM
01 Dec - 13 Dec	Lufthansa
01 Dec - 06 Dec	SWISS
10 Dec - 24 Dec	Ryanair
04 Dec - 11 Dec	Oman Air
05 Dec - 24 Jan	KLM
28 Dec - 18 Jan	Air China
30 Dec - 17 Jan	Air China
31 Dec - 13 Jan	Air China
29 Dec - 16 Jan	Air China
29 Dec - 12 Jan	Air China
28 Dec - 15 Jan	Air China
31 Dec - 12 Jan	Air China
28 Dec - 06 Jan	Air China

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 498€

Return flights