AirHint found the following cheapest return flights from Sydney (SYD) to Colombo (CMB) in October 2025 (see full year).

Return flights

28 Oct - 04 Nov	AirAsia X
19 Oct - 24 Oct	AirAsia X
25 Oct - 09 Nov	VietJet Air
22 Oct - 26 Oct	Scoot
18 Oct - 02 Nov	Scoot
11 Oct - 02 Nov	Scoot
09 Oct - 26 Oct	Scoot
21 Oct - 26 Oct	Malaysia Airlines
28 Oct - 14 Nov	Malaysia Airlines
19 Oct - 31 Oct	Malaysia Airlines
18 Oct - 31 Oct	Malaysia Airlines
06 Oct - 13 Oct	Cebu Pacific
13 Oct - 15 Nov	Singapore Airlines
16 Oct - 30 Oct	Malaysia Airlines
16 Oct - 28 Oct	AirAsia X
28 Oct - 30 Oct	AirAsia X
28 Oct - 10 Nov	AirAsia X
28 Oct - 13 Nov	AirAsia X
31 Oct - 10 Nov	AirAsia X
31 Oct - 14 Nov	AirAsia X

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

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 October from 393€

Return flights