Cheapest one-way flights from London to Singapore in December from $343

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 Air Serbia
01 Dec Hainan Airlines
02 Dec Vueling Airlines
11 Dec Aegean Airlines
07 Dec Hainan Airlines
29 Dec Hainan Airlines
10 Dec Vueling Airlines
08 Dec Hainan Airlines
31 Dec Shenzhen Airlines
03 Dec Shenzhen Airlines

Also check the deals for return 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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