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

Return flights

04 Aug - 17 Aug	Turkish Airlines
12 Aug - 19 Aug	Air India
01 Aug - 26 Aug	Air India
14 Aug - 22 Aug	Thai Airways
06 Aug - 09 Aug	Finnair
13 Aug - 23 Aug	Finnair
19 Aug - 26 Aug	Finnair
07 Aug - 22 Aug	Air India
10 Aug - 23 Aug	Lufthansa
03 Aug - 20 Aug	Lufthansa
28 Aug - 09 Sep	Finnair
31 Aug - 04 Sep	Finnair
31 Aug - 04 Sep	Qantas	direct
09 Aug - 07 Sep	Qatar Airways
09 Aug - 06 Sep	Qatar Airways
11 Aug - 08 Sep	Qatar Airways

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 625€

Return flights