Cheapest return flights from London to Singapore in September from $559

Best time to book flights for London (LHR) to Singapore (SIN) flights at AirHint

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

Return flights

26 Sep - 05 Oct Hainan Airlines
10 Sep - 30 Sep Hainan Airlines
18 Sep - 16 Oct China Southern
20 Sep - 18 Oct China Southern
16 Sep - 23 Oct China Southern
17 Sep - 11 Oct China Southern
30 Sep - 06 Oct Gulf Air
03 Sep - 10 Sep Hainan Airlines
26 Sep - 15 Oct Hainan Airlines
10 Sep - 24 Sep Hainan Airlines
10 Sep - 21 Sep Hainan Airlines
03 Sep - 17 Sep Hainan Airlines
17 Sep - 24 Sep Hainan Airlines
10 Sep - 17 Sep Hainan Airlines
15 Sep - 21 Sep Hainan Airlines
03 Sep - 07 Sep Hainan Airlines
05 Sep - 21 Sep Hainan Airlines
18 Sep - 04 Oct Air China
09 Sep - 02 Oct Etihad Airways
09 Sep - 01 Oct Etihad Airways

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

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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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