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

Return flights

29 Apr - 10 May	Etihad Airways
27 Apr - 13 May	Etihad Airways
29 Apr - 03 May	Finnair
21 Apr - 14 May	Gulf Air
28 Apr - 05 May	Finnair
30 Apr - 03 May	Finnair
16 Apr - 01 May	Finnair
30 Apr - 14 May	Finnair
28 Apr - 10 May	Finnair
30 Apr - 17 May	Finnair
01 Apr - 05 Apr	Malaysia Airlines
01 Apr - 15 Apr	Malaysia Airlines
01 Apr - 18 Apr	Malaysia Airlines
05 Apr - 14 Apr	Gulf Air
03 Apr - 18 Apr	Gulf Air
05 Apr - 12 Apr	Gulf Air
18 Apr - 25 Apr	Gulf Air
06 Apr - 17 Apr	Gulf Air
24 Apr - 28 Apr	Gulf Air
24 Apr - 29 Apr	Gulf Air

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

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 April from $625

Return flights