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

Return flights

21 May - 28 May	Etihad Airways
01 May - 09 May	Malaysia Airlines
31 May - 07 Jun	Oman Air
18 May - 05 Jun	Etihad Airways
21 May - 07 Jun	Etihad Airways
01 May - 16 May	Malaysia Airlines
28 May - 12 Jun	Finnair
27 May - 11 Jun	Finnair
14 May - 26 May	Finnair
27 May - 03 Jun	Finnair
27 May - 02 Jun	Finnair
10 May - 22 May	Finnair
13 May - 28 May	Finnair
01 May - 17 May	Malaysia Airlines
16 May - 24 May	Malaysia Airlines
08 May - 22 May	Malaysia Airlines
26 May - 05 Jun	Malaysia Airlines
22 May - 29 May	Gulf Air
29 May - 12 Jun	Gulf Air
26 May - 09 Jun	Finnair

Also check the deals for one-way flights from Singapore to London 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 Singapore to London in May from 508€

Return flights