AirHint found the following cheapest return flights from Dallas-Fort Worth (DFW) to Sydney (SYD) in September 2025 (see full year).

Return flights

24 Sep - 05 Oct	Hawaiian Airlines
09 Sep - 16 Sep	Fiji Airways
01 Sep - 15 Sep	Spirit Airlines
08 Sep - 24 Sep	Frontier Airlines
15 Sep - 29 Sep	Air Canada
14 Sep - 28 Sep	Frontier Airlines
15 Sep - 29 Sep	Qantas	direct
14 Sep - 28 Sep	Qantas	direct
24 Sep - 05 Oct	Qantas	direct
09 Sep - 16 Sep	Qantas	direct
08 Sep - 24 Sep	Qantas	direct
01 Sep - 15 Sep	Qantas	direct

Also check the deals for one-way flights from Dallas-Fort Worth 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 Dallas-Fort Worth to Sydney in September from 944€

Return flights