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

Return flights

11 Aug - 22 Sep	Qatar Airways
07 Aug - 24 Aug	China Southern
14 Aug - 26 Aug	China Southern
11 Aug - 01 Sep	Emirates
05 Aug - 19 Aug	Emirates
13 Aug - 20 Aug	Emirates
11 Aug - 25 Aug	Emirates
07 Aug - 20 Aug	Emirates
04 Aug - 19 Aug	Emirates
10 Aug - 31 Aug	Emirates
06 Aug - 06 Sep	Emirates
03 Aug - 06 Sep	Emirates
08 Aug - 24 Aug	Emirates
04 Aug - 29 Aug	Emirates
02 Aug - 06 Sep	Emirates
26 Aug - 02 Sep	Air India
18 Aug - 02 Sep	Emirates
23 Aug - 06 Sep	IndiGo
22 Aug - 22 Sep	IndiGo
25 Aug - 01 Sep	IndiGo

Also check the deals for one-way flights from Singapore to London 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 Singapore to London in August from $691

Return flights