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

Return flights

16 Jun - 23 Jun	KLM
17 Jun - 24 Jun	KLM
16 Jun - 24 Jun	KLM
18 Jun - 23 Jun	KLM
15 Jun - 24 Jun	KLM
19 Jun - 24 Jun	KLM
17 Jun - 30 Jun	KLM
19 Jun - 23 Jun	KLM
18 Jun - 22 Jun	KLM
15 Jun - 22 Jun	KLM
18 Jun - 18 Jul	KLM
24 Jun - 15 Jul	SWISS
25 Jun - 02 Jul	Lufthansa
23 Jun - 15 Jul	KLM
21 Jun - 15 Jul	KLM
18 Jun - 07 Jul	KLM
24 Jun - 01 Jul	SWISS
15 Jun - 01 Jul	KLM
26 Jun - 22 Jul	SWISS
21 Jun - 14 Jul	KLM

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

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 June from $851

Return flights