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

Return flights

18 Apr - 26 Apr	Aegean Airlines
19 Apr - 26 Apr	Air Serbia
17 Apr - 04 May	Lufthansa
27 Apr - 25 May	Lufthansa
19 Apr - 19 May	Lufthansa
22 Apr - 04 May	Lufthansa
24 Apr - 08 May	Lufthansa
29 Apr - 16 May	Lufthansa
15 Apr - 05 May	Lufthansa
29 Apr - 09 May	Lufthansa
17 Apr - 05 May	Lufthansa
25 Apr - 03 May	Lufthansa
13 Apr - 27 Apr	Gulf Air
21 Apr - 30 Apr	Gulf Air
13 Apr - 22 Apr	Gulf Air
16 Apr - 28 Apr	Gulf Air
23 Apr - 30 Apr	Gulf Air
15 Apr - 20 Apr	Gulf Air
20 Apr - 27 Apr	Gulf Air
15 Apr - 22 Apr	Gulf Air

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 473€

Return flights