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

Return flights

04 Dec - 08 Dec	Ryanair
01 Dec - 08 Dec	Ryanair
03 Dec - 08 Dec	Ryanair
04 Dec - 20 Dec	Ryanair
10 Dec - 26 Dec	Pegasus Airlines
11 Dec - 26 Dec	Ryanair
27 Dec - 19 Jan	Pegasus Airlines
01 Dec - 13 Dec	Ryanair
05 Dec - 19 Dec	Ryanair
10 Dec - 07 Jan	Pegasus Airlines
26 Dec - 16 Jan	Pegasus Airlines
27 Dec - 20 Jan	Pegasus Airlines
27 Dec - 09 Jan	Pegasus Airlines
06 Dec - 19 Dec	Ryanair
15 Dec - 12 Jan	Ryanair
16 Dec - 26 Dec	Ryanair
31 Dec - 09 Jan	Ryanair
12 Dec - 23 Jan	Ryanair
31 Dec - 14 Jan	Ryanair
14 Dec - 16 Jan	Ryanair

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 567€

Return flights