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

Return flights

30 Sep - 18 Oct	Shenzhen Airlines
28 Sep - 10 Oct	Shenzhen Airlines
25 Sep - 04 Oct	Shenzhen Airlines
25 Sep - 10 Oct	Shenzhen Airlines
30 Sep - 22 Oct	Shenzhen Airlines
30 Sep - 04 Oct	Shenzhen Airlines
16 Sep - 23 Sep	Gulf Air
02 Sep - 17 Sep	Gulf Air
16 Sep - 01 Oct	Gulf Air
03 Sep - 07 Sep	Air China
07 Sep - 14 Sep	Air China
10 Sep - 16 Sep	Air China
20 Sep - 27 Sep	Gulf Air
27 Sep - 11 Oct	Gulf Air
18 Sep - 28 Sep	Gulf Air
11 Sep - 28 Sep	Gulf Air
25 Sep - 05 Oct	Gulf Air
14 Sep - 24 Sep	Gulf Air
30 Sep - 14 Oct	Gulf Air
16 Sep - 30 Sep	Gulf Air

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.

Book a cheap hotel in Singapore

Cheap car rent in Singapore

Cheapest return flights from London to Singapore in September from 474€

Return flights