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

Return flights

17 Sep - 22 Sep	Shanghai Airlines
17 Sep - 24 Sep	Shanghai Airlines
13 Sep - 16 Sep	Japan Airlines
06 Sep - 07 Sep	Japan Airlines
02 Sep - 03 Sep	Japan Airlines
03 Sep - 04 Sep	Japan Airlines
02 Sep - 17 Sep	Japan Airlines
03 Sep - 13 Sep	Japan Airlines
11 Sep - 18 Sep	Japan Airlines
07 Sep - 14 Sep	Japan Airlines
24 Sep - 08 Oct	Japan Airlines
23 Sep - 01 Oct	Japan Airlines
25 Sep - 05 Oct	Japan Airlines
25 Sep - 09 Oct	Japan Airlines
28 Sep - 08 Oct	Japan Airlines
02 Sep - 01 Oct	Japan Airlines
14 Sep - 01 Oct	Japan Airlines
25 Sep - 02 Oct	Japan Airlines
26 Sep - 03 Oct	Japan Airlines
24 Sep - 03 Oct	Japan Airlines

Also check the deals for one-way flights from Taipei to Sydney 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 Taipei to Sydney in September from $1048

Return flights