AirHint found the following cheapest return flights from Houston (HOU) to Sydney (SYD) in December 2026 (see full year).
Return flights
| 10 Dec - 13 Dec | Turkish Airlines | ||
| 27 Dec - 07 Jan | ANA | ||
| 25 Dec - 09 Jan | Air Canada | ||
| 10 Dec - 13 Dec | United | direct | |
| 11 Dec - 13 Dec | Air Canada | ||
| 16 Dec - 01 Jan | Air New Zealand | ||
| 16 Dec - 01 Jan | United | direct |
Also check the deals for one-way flights from Houston to Sydney in December.
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