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

Return flights

02 Oct - 23 Oct	Air China
21 Oct - 17 Nov	Air China
21 Oct - 16 Nov	Air China
21 Oct - 11 Nov	Air China
02 Oct - 13 Nov	Air China
04 Oct - 22 Oct	Air China
03 Oct - 15 Oct	Air China
19 Oct - 24 Oct	Aegean Airlines
04 Oct - 15 Oct	Air China
03 Oct - 11 Nov	Air China
04 Oct - 24 Oct	Air China
02 Oct - 24 Oct	Air China
01 Oct - 15 Oct	Hainan Airlines
03 Oct - 07 Oct	Hainan Airlines
01 Oct - 16 Oct	Hainan Airlines
27 Oct - 16 Nov	Hainan Airlines
22 Oct - 20 Nov	Air China
26 Oct - 07 Nov	Shenzhen Airlines
26 Oct - 09 Nov	Shenzhen Airlines
26 Oct - 08 Nov	Shenzhen Airlines

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

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 October from 425€

Return flights