AirHint found the following cheapest return flights from Singapore (SIN) to London (LHR) in October 2026 (see full year).

Return flights

23 Oct - 11 Nov	Finnair
23 Oct - 08 Nov	Finnair
22 Oct - 03 Nov	Finnair
06 Oct - 14 Oct	Finnair
05 Oct - 20 Oct	Finnair
02 Oct - 06 Oct	Finnair
26 Oct - 02 Nov	Finnair
17 Oct - 31 Oct	Finnair
13 Oct - 21 Oct	Finnair
03 Oct - 11 Oct	Etihad Airways
20 Oct - 30 Oct	Finnair
18 Oct - 31 Oct	Finnair
06 Oct - 15 Oct	Turkish Airlines
06 Oct - 16 Oct	Turkish Airlines
31 Oct - 07 Nov	Finnair
26 Oct - 02 Nov	Qantas	direct
31 Oct - 14 Nov	Qantas	direct
31 Oct - 14 Nov	Finnair
22 Oct - 03 Nov	Qantas	direct
31 Oct - 07 Nov	Singapore Airlines	direct

Also check the deals for one-way flights from Singapore to London 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 Singapore to London in October from 565€

Return flights