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

Return flights

28 Apr - 06 May	AirAsia X
29 Apr - 06 May	AirAsia X
01 Apr - 22 Apr	AirAsia X
19 Apr - 22 Apr	AirAsia X
19 Apr - 06 May	AirAsia X
19 Apr - 27 Apr	AirAsia X
19 Apr - 19 May	Malaysia Airlines
28 Apr - 05 May	Singapore Airlines
18 Apr - 22 Apr	AirAsia X
18 Apr - 06 May	AirAsia X
25 Apr - 06 May	AirAsia X
18 Apr - 27 Apr	AirAsia X
25 Apr - 27 Apr	AirAsia X
17 Apr - 27 Apr	Singapore Airlines
18 Apr - 28 Apr	Singapore Airlines
21 Apr - 21 May	Singapore Airlines
28 Apr - 01 May	AirAsia X
29 Apr - 01 May	AirAsia X
01 Apr - 03 Apr	AirAsia X
14 Apr - 22 Apr	Singapore Airlines

Also check the deals for one-way flights from Sydney to Colombo in April.

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 April from $590

Return flights