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

Return flights

03 May - 14 May	Etihad Airways
04 May - 11 May	Etihad Airways
14 May - 20 May	Etihad Airways
24 May - 31 May	Etihad Airways
14 May - 19 May	Etihad Airways
19 May - 04 Jun	Etihad Airways
17 May - 28 May	Etihad Airways
11 May - 03 Jun	Finnair
20 May - 28 May	Finnair
07 May - 21 May	Finnair
12 May - 03 Jun	Finnair
13 May - 18 May	Finnair
13 May - 19 May	Finnair
25 May - 01 Jun	Finnair
28 May - 09 Jun	Finnair
21 May - 03 Jun	Finnair
30 May - 14 Jun	Gulf Air
22 May - 04 Jun	KLM
22 May - 05 Jun	KLM
23 May - 07 Jun	Etihad Airways

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 $612

Return flights