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

Return flights

28 Aug - 25 Sep	KLM
20 Aug - 06 Sep	SWISS
21 Aug - 06 Sep	SWISS
17 Aug - 03 Sep	SWISS
12 Aug - 20 Aug	SWISS
05 Aug - 20 Aug	SWISS
13 Aug - 20 Aug	SWISS
04 Aug - 18 Aug	SWISS
25 Aug - 01 Sep	SWISS
16 Aug - 01 Sep	SWISS
13 Aug - 27 Aug	SWISS
24 Aug - 30 Aug	SWISS
06 Aug - 13 Aug	SWISS
10 Aug - 16 Aug	SWISS
07 Aug - 30 Aug	SWISS
19 Aug - 30 Aug	SWISS
29 Aug - 04 Sep	KLM
22 Aug - 19 Sep	KLM
23 Aug - 19 Sep	KLM
29 Aug - 26 Sep	KLM

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

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 August from $1015

Return flights