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

Return flights

30 Sep - 08 Oct	Wizz Air UK
02 Sep - 23 Sep	Wizz Air
30 Sep - 10 Oct	Wizz Air UK
08 Sep - 23 Sep	Wizz Air
04 Sep - 23 Sep	Wizz Air UK
19 Sep - 23 Sep	Wizz Air UK
02 Sep - 22 Sep	Wizz Air
30 Sep - 06 Oct	Wizz Air
10 Sep - 22 Oct	Wizz Air
15 Sep - 23 Sep	Wizz Air
10 Sep - 22 Sep	Wizz Air
02 Sep - 16 Sep	Wizz Air
15 Sep - 22 Sep	Wizz Air
08 Sep - 22 Sep	Wizz Air
30 Sep - 05 Oct	Ryanair
15 Sep - 07 Oct	Wizz Air
27 Sep - 09 Oct	Wizz Air UK
25 Sep - 02 Oct	Ryanair
13 Sep - 01 Oct	Ryanair
27 Sep - 06 Oct	Wizz Air UK

Also check the deals for one-way flights from London to Singapore 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 London to Singapore in September from 520€

Return flights