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

Return flights

06 Oct - 10 Oct	Air India
28 Oct - 22 Nov	Air India
05 Oct - 25 Oct	Air India
01 Oct - 07 Oct	Air India
01 Oct - 31 Oct	Air India
27 Oct - 11 Nov	Air India
03 Oct - 10 Oct	Air India
15 Oct - 22 Oct	Air China
14 Oct - 21 Oct	Air China
15 Oct - 21 Oct	Air China
14 Oct - 29 Oct	Air China
13 Oct - 22 Oct	Hainan Airlines
27 Oct - 09 Nov	Air China
29 Oct - 09 Nov	Air China
29 Oct - 10 Nov	Air China
27 Oct - 07 Nov	Air China
29 Oct - 11 Nov	Air China
26 Oct - 04 Nov	Shenzhen Airlines
31 Oct - 13 Nov	Shenzhen Airlines
25 Oct - 06 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 $453

Return flights