AirHint found the following cheapest return flights from Dallas-Fort Worth (DFW) to Sydney (SYD) in December 2025 (see full year).
Return flights
| 28 Dec - 31 Jan | Frontier Airlines | ||
| 31 Dec - 07 Jan | Qantas | ||
| 28 Dec - 03 Jan | Delta | ||
| 31 Dec - 07 Jan | Qantas | direct | |
| 28 Dec - 31 Jan | Qantas | direct | |
| 28 Dec - 03 Jan | Qantas | direct |
Also check the deals for one-way flights from Dallas-Fort Worth to Sydney in December.
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