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

Return flights

27 Sep - 14 Oct	Wizz Air UK
22 Sep - 02 Oct	Wizz Air UK
27 Sep - 12 Oct	Wizz Air UK
26 Sep - 26 Oct	Wizz Air UK
16 Sep - 28 Sep	Air China
15 Sep - 30 Sep	Air China
24 Sep - 16 Oct	Air China
22 Sep - 03 Oct	Air China
24 Sep - 02 Oct	Air China
18 Sep - 02 Oct	Air China
24 Sep - 20 Oct	Air China
22 Sep - 13 Oct	Air China
17 Sep - 24 Sep	Air China
10 Sep - 24 Sep	Air China
12 Sep - 28 Sep	Air China
04 Sep - 09 Sep	Air China
09 Sep - 29 Sep	Air China
18 Sep - 25 Sep	Air China
11 Sep - 28 Sep	Air China
14 Sep - 28 Sep	Air China

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

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 September from 461€

Return flights