Cheapest return flights from Sydney to Colombo in September from $584

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

11 Sep - 14 Sep Scoot Tigerair
04 Sep - 25 Sep Singapore Airlines
07 Sep - 21 Sep Singapore Airlines
02 Sep - 21 Sep Singapore Airlines
04 Sep - 23 Sep Singapore Airlines
09 Sep - 19 Sep Singapore Airlines
01 Sep - 13 Sep Singapore Airlines
02 Sep - 14 Sep Singapore Airlines
06 Sep - 21 Sep Singapore Airlines
05 Sep - 16 Sep Singapore Airlines
08 Sep - 16 Oct Singapore Airlines
10 Sep - 14 Oct AirAsia X
09 Sep - 04 Oct Malaysia Airlines
19 Sep - 18 Oct Jetstar
23 Sep - 14 Oct Singapore Airlines
30 Sep - 15 Oct AirAsia X
20 Sep - 18 Oct Qantas
18 Sep - 08 Oct Singapore Airlines
30 Sep - 16 Oct AirAsia X
30 Sep - 14 Oct AirAsia X

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.

Book a cheap hotel in Colombo

Cheap car rent in Colombo