Cheapest one-way flights from London to Singapore in September from $362

AirHint found the following cheapest one-way flights from London (LHR) to Singapore (SIN) in September 2025 (see full year).

One-Way flights

28 Sep British Airways
26 Sep British Airways
25 Sep British Airways
09 Sep Aegean Airlines
06 Sep Shenzhen Airlines
10 Sep Shenzhen Airlines
13 Sep Shenzhen Airlines
07 Sep Shenzhen Airlines
20 Sep Shenzhen Airlines
27 Sep British Airways

Also check the deals for return flights from London to Singapore in September.

Skyscanner

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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