Cheapest return flights from London to Singapore in December from $714

Best time to book flights for London (LON) to Singapore (SIN) flights at AirHint

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

Return flights

01 Dec - 15 Dec Ryanair
01 Dec - 15 Dec Singapore Airlines direct
01 Dec - 07 Dec Singapore Airlines direct
11 Dec - 15 Dec Ryanair
04 Dec - 10 Dec Air China
05 Dec - 12 Dec Air China
05 Dec - 19 Dec Air China
30 Dec - 28 Jan Air China
30 Dec - 19 Jan Air China
29 Dec - 31 Jan Air China
29 Dec - 20 Jan Air China
31 Dec - 07 Jan Ryanair
04 Dec - 10 Dec Singapore Airlines direct
16 Dec - 15 Jan Ryanair
15 Dec - 22 Dec Ryanair
04 Dec - 06 Jan British Airways
20 Dec - 18 Jan Ryanair
20 Dec - 07 Jan Ryanair
10 Dec - 13 Dec Ryanair
24 Dec - 18 Jan British Airways

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

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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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