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

Return flights

30 Aug - 17 Sep	Finnair
29 Aug - 13 Sep	Lufthansa
30 Aug - 18 Sep	Finnair
28 Aug - 13 Sep	SWISS
26 Aug - 06 Sep	Finnair
27 Aug - 06 Sep	Finnair
28 Aug - 11 Sep	Finnair
22 Aug - 08 Sep	Finnair
30 Aug - 06 Sep	Finnair
28 Aug - 06 Sep	Finnair
16 Aug - 23 Aug	Finnair
23 Aug - 30 Aug	Finnair
17 Aug - 23 Aug	Finnair
24 Aug - 31 Aug	Finnair
20 Aug - 27 Aug	Finnair
11 Aug - 27 Aug	Scandinavian Airlines
13 Aug - 18 Aug	Finnair
17 Aug - 31 Aug	Finnair
05 Aug - 18 Aug	Finnair
10 Aug - 17 Aug	Finnair

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 574€

Return flights