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

Return flights

09 Dec - 07 Jan	Alaska Airlines
25 Dec - 19 Jan	Frontier Airlines
25 Dec - 21 Jan	Frontier Airlines
25 Dec - 08 Jan	Frontier Airlines
11 Dec - 23 Dec	Qantas
28 Dec - 11 Jan	Qantas
13 Dec - 22 Dec	Frontier Airlines
30 Dec - 06 Jan	Fiji Airways
12 Dec - 15 Jan	Qantas
13 Dec - 27 Dec	Qantas
27 Dec - 04 Jan	Frontier Airlines
26 Dec - 04 Jan	Frontier Airlines
20 Dec - 02 Jan	Hawaiian Airlines
19 Dec - 31 Dec	Frontier Airlines
18 Dec - 29 Dec	Fiji Airways
13 Dec - 22 Dec	Qantas	direct
18 Dec - 29 Dec	Qantas	direct

Also check the deals for one-way flights from Dallas-Fort Worth to Sydney in December.

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 December from 1144€

Return flights