AirHint found the following cheapest return flights from Colombo (CMB) to Sydney (SYD) in May 2026 (see full year).

Return flights

13 May - 19 May	AirAsia
22 May - 09 Jun	AirAsia
27 May - 09 Jun	AirAsia
18 May - 26 May	AirAsia
18 May - 27 May	AirAsia
13 May - 26 May	AirAsia
13 May - 27 May	AirAsia
13 May - 15 May	AirAsia
06 May - 19 May	AirAsia
06 May - 13 May	AirAsia
18 May - 02 Jun	AirAsia
13 May - 02 Jun	AirAsia
18 May - 23 May	AirAsia
13 May - 23 May	AirAsia
25 May - 09 Jun	AirAsia
22 May - 02 Jun	AirAsia
26 May - 16 Jun	Malaysia Airlines
27 May - 17 Jun	Malaysia Airlines
27 May - 02 Jun	AirAsia
25 May - 02 Jun	AirAsia

Also check the deals for one-way flights from Colombo to Sydney 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 Colombo to Sydney in May from $612

Return flights