AirHint found the following cheapest return flights from Houston (IAH) to Brisbane (BNE) in December 2025 (see full year).
Return flights
| 26 Dec - 16 Jan | Frontier Airlines | ||
| 27 Dec - 12 Jan | Frontier Airlines | ||
| 14 Dec - 21 Dec | Spirit Airlines | ||
| 08 Dec - 15 Dec | Qantas | ||
| 20 Dec - 02 Jan | Air New Zealand |
Also check the deals for one-way flights from Houston to Brisbane in December.
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