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

Return flights

06 May - 13 May	Ryanair
07 May - 21 May	Ryanair
07 May - 19 May	Turkish Airlines
10 May - 17 May	Ryanair
03 May - 19 May	Turkish Airlines
05 May - 10 May	Ryanair
01 May - 21 May	Turkish Airlines
28 May - 11 Jun	Turkish Airlines
29 May - 05 Jun	Ryanair
26 May - 08 Jun	Ryanair
28 May - 15 Jun	Ryanair
29 May - 14 Jun	Ryanair
01 May - 17 May	Turkish Airlines
03 May - 20 May	Turkish Airlines
28 May - 14 Jun	Turkish Airlines
04 May - 10 May	Turkish Airlines
08 May - 08 Jun	Turkish Airlines
20 May - 01 Jun	Ryanair
26 May - 02 Jun	Turkish Airlines
24 May - 04 Jun	Ryanair

Also check the deals for one-way flights from London to Singapore 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 London to Singapore in May from 546€

Return flights