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

Return flights

13 May - 16 May	Air China
03 May - 07 May	Gulf Air
05 May - 12 May	Air China
04 May - 15 May	Air China
12 May - 17 May	Air China
15 May - 18 May	Air China
10 May - 17 May	Air China
04 May - 18 May	Air China
11 May - 18 May	Air China
05 May - 10 May	Air China
29 May - 11 Jun	Gulf Air
18 May - 08 Jun	Air France
16 May - 14 Jun	SWISS
29 May - 13 Jun	Gulf Air
16 May - 08 Jun	SWISS
29 May - 06 Jun	Gulf Air
24 May - 02 Jun	Gulf Air
24 May - 09 Jun	Gulf Air
29 May - 08 Jun	Air China
22 May - 02 Jun	Gulf Air

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

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 May from 484€

Return flights