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

Return flights

08 Oct - 15 Oct	Air India
07 Oct - 14 Oct	Air India
07 Oct - 15 Oct	Air India
06 Oct - 29 Oct	Air India
08 Oct - 22 Oct	Air India
07 Oct - 29 Oct	Air India
07 Oct - 21 Oct	Air India
07 Oct - 11 Oct	Air India
07 Oct - 23 Oct	Air India
29 Oct - 12 Nov	Air India
08 Oct - 12 Oct	Air India
28 Oct - 13 Nov	Air India
28 Oct - 20 Nov	Air India
28 Oct - 15 Nov	Air India
03 Oct - 09 Nov	Pegasus Airlines
31 Oct - 11 Nov	Air India
14 Oct - 05 Nov	Pegasus Airlines
03 Oct - 04 Nov	Pegasus Airlines
31 Oct - 28 Nov	Air India
31 Oct - 15 Nov	Air India

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 351€

Return flights