AirHint found the following cheapest one-way flights from Kuala Lumpur (SZB) to Singapore (XSP) in September 2025 (see full year).

One-Way flights

25 Sep	Firefly	direct
24 Sep	Firefly	direct
19 Sep	Firefly	direct
21 Sep	Firefly	direct
30 Sep	Firefly	direct
16 Sep	Firefly	direct
26 Sep	Malaysia Airlines	direct
29 Sep	Firefly	direct
11 Sep	Firefly	direct
22 Sep	Firefly	direct

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

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 one-way flights from Kuala Lumpur to Singapore in September from 29€

One-Way flights