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

Return flights

01 Sep - 15 Sep	Hong Kong Airlines
22 Sep - 30 Sep	Fiji Airways
03 Sep - 17 Sep	Air Canada
11 Sep - 18 Sep	Air Canada
11 Sep - 23 Sep	Air Canada
03 Sep - 10 Sep	Air Canada
03 Sep - 13 Sep	Air Canada
16 Sep - 30 Sep	Air Canada
05 Sep - 13 Sep	Air Canada
18 Sep - 25 Sep	Air Canada
26 Sep - 01 Oct	Air Canada
16 Sep - 06 Oct	Virgin Australia
11 Sep - 02 Oct	Delta
22 Sep - 06 Oct	Virgin Australia
04 Sep - 03 Oct	Qantas
25 Sep - 09 Oct	Qantas
24 Sep - 12 Oct	Delta

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

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 Calgary in September from 937€

Return flights