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

Return flights

04 Dec - 08 Dec	Wizz Air
05 Dec - 15 Dec	Wizz Air
05 Dec - 12 Dec	Wizz Air
01 Dec - 15 Dec	Wizz Air UK
08 Dec - 15 Dec	Wizz Air
05 Dec - 08 Dec	Wizz Air
01 Dec - 08 Dec	Wizz Air UK
01 Dec - 22 Dec	Wizz Air UK
31 Dec - 16 Jan	Wizz Air
29 Dec - 19 Jan	Wizz Air
11 Dec - 26 Dec	Wizz Air UK
02 Dec - 19 Jan	easyJet
11 Dec - 22 Jan	Wizz Air UK
29 Dec - 12 Jan	Wizz Air
01 Dec - 21 Dec	Wizz Air UK
11 Dec - 11 Jan	Wizz Air UK
29 Dec - 22 Jan	Wizz Air
11 Dec - 02 Jan	Wizz Air UK
27 Dec - 12 Jan	Wizz Air
25 Dec - 16 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 544€

Return flights