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

Return flights

21 Apr - 05 May	Lufthansa
30 Apr - 05 May	SWISS
20 Apr - 27 Apr	Lufthansa
13 Apr - 27 Apr	Lufthansa
19 Apr - 23 Apr	Gulf Air
17 Apr - 27 Apr	Lufthansa
16 Apr - 27 Apr	Lufthansa
20 Apr - 04 May	Lufthansa
15 Apr - 22 Apr	Lufthansa
25 Apr - 12 May	Air Serbia
30 Apr - 07 May	Finnair
15 Apr - 01 May	Finnair
20 Apr - 17 May	Lufthansa
16 Apr - 03 May	Air China
21 Apr - 03 May	Air China
20 Apr - 30 Apr	Lufthansa
22 Apr - 30 Apr	Lufthansa
23 Apr - 30 Apr	Lufthansa
07 Apr - 23 Apr	Lufthansa
21 Apr - 12 May	Finnair

Also check the deals for one-way flights from London to Singapore 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 London to Singapore in April from $601

Return flights