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

Return flights

04 May - 15 May	AirAsia X
05 May - 18 May	AirAsia X
04 May - 17 May	AirAsia X
19 May - 16 Jun	AirAsia X
06 May - 10 May	AirAsia X
05 May - 08 May	AirAsia X
04 May - 11 May	AirAsia X
04 May - 12 May	AirAsia X
19 May - 09 Jun	AirAsia X
03 May - 13 May	AirAsia X
08 May - 16 May	AirAsia X
06 May - 13 May	AirAsia X
22 May - 14 Jun	AirAsia X
20 May - 10 Jun	AirAsia X
08 May - 06 Jun	AirAsia X
30 May - 06 Jun	Singapore Airlines
08 May - 05 Jun	Singapore Airlines
26 May - 07 Jun	Singapore Airlines
30 May - 28 Jun	Singapore Airlines
06 May - 04 Jun	Singapore Airlines

Also check the deals for one-way flights from Sydney to Colombo 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 Sydney to Colombo in May from $454

Return flights