Cheapest return flights from Sydney to Colombo in September from $620

Best time to book flights for Sydney (SYD) to Colombo (CMB) flights at AirHint

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

Return flights

08 Sep - 21 Sep Singapore Airlines
06 Sep - 16 Sep Singapore Airlines
08 Sep - 22 Sep Singapore Airlines
02 Sep - 09 Sep Singapore Airlines
01 Sep - 14 Oct Singapore Airlines
07 Sep - 20 Sep Singapore Airlines
30 Sep - 14 Oct Singapore Airlines
02 Sep - 10 Sep Singapore Airlines
06 Sep - 19 Sep Singapore Airlines
02 Sep - 26 Sep Cathay Pacific
04 Sep - 26 Sep Cathay Pacific
15 Sep - 26 Sep Cathay Pacific
27 Sep - 10 Oct Philippine Airlines
17 Sep - 01 Oct Singapore Airlines
24 Sep - 01 Oct Singapore Airlines
25 Sep - 02 Oct Singapore Airlines
19 Sep - 01 Oct Jetstar
18 Sep - 02 Oct Singapore Airlines
26 Sep - 07 Oct Cathay Pacific
27 Sep - 07 Oct Cathay Pacific

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

Skyscanner

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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