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

Return flights

23 Sep - 27 Sep	Malaysia Airlines
15 Sep - 22 Sep	Malaysia Airlines
15 Sep - 25 Sep	Malaysia Airlines
22 Sep - 30 Sep	Malaysia Airlines
23 Sep - 06 Oct	Malaysia Airlines
22 Sep - 07 Oct	Malaysia Airlines
29 Sep - 13 Oct	Malaysia Airlines
15 Sep - 15 Sep	Malaysia Airlines
28 Sep - 10 Oct	Etihad Airways
10 Sep - 18 Sep	Finnair
06 Sep - 18 Sep	Finnair
14 Sep - 05 Oct	Finnair
24 Sep - 04 Oct	Finnair
01 Sep - 10 Sep	Finnair
04 Sep - 14 Sep	Finnair
04 Sep - 20 Sep	Finnair
09 Sep - 01 Oct	Finnair
16 Sep - 01 Oct	Finnair
28 Sep - 31 Oct	Malaysia Airlines
24 Sep - 31 Oct	Etihad Airways

Also check the deals for one-way flights from Singapore to London 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 Singapore to London in September from 601€

Return flights