Cheapest one-way flights from London to Singapore in December from $363

AirHint found the following cheapest one-way flights from London (LHR) to Singapore (SIN) in December 2025 (see full year).

One-Way flights

04 Dec British Airways
07 Dec British Airways
11 Dec British Airways
02 Dec British Airways
01 Dec British Airways
08 Dec British Airways
09 Dec British Airways
10 Dec British Airways
23 Dec British Airways
05 Dec British Airways

Also check the deals for return flights from London to Singapore in December.

Skyscanner

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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