AirHint found the following cheapest return flights from Melbourne (MEL) to Colombo (CMB) in September 2025 (see full year).

Return flights

04 Sep - 05 Sep	AirAsia X
01 Sep - 05 Sep	AirAsia X
04 Sep - 09 Sep	AirAsia X
05 Sep - 09 Sep	AirAsia X
01 Sep - 09 Sep	AirAsia X
12 Sep - 14 Sep	AirAsia X
12 Sep - 20 Sep	AirAsia X
04 Sep - 06 Sep	AirAsia X
05 Sep - 06 Sep	AirAsia X
01 Sep - 06 Sep	AirAsia X
12 Sep - 01 Oct	AirAsia X
11 Sep - 01 Oct	AirAsia X
12 Sep - 02 Oct	AirAsia X
19 Sep - 25 Oct	AirAsia X
11 Sep - 02 Oct	AirAsia X
29 Sep - 19 Oct	AirAsia X
28 Sep - 01 Oct	AirAsia X
24 Sep - 01 Oct	AirAsia X
11 Sep - 10 Oct	Malaysia Airlines
26 Sep - 01 Oct	AirAsia X

Also check the deals for one-way flights from Melbourne to Colombo 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 return flights from Melbourne to Colombo in September from $597

Return flights