AirHint found the following cheapest one-way flights from Phoenix (PHX) to Brussels (BRU) in December 2025 (see full year).
One-Way flights
| 31 Dec | Lufthansa | ||
| 30 Dec | United | ||
| 24 Dec | Frontier Airlines | ||
| 14 Dec | Air Canada |
Also check the deals for return flights from Phoenix to Brussels in December.
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