AirHint found the following cheapest return flights from Nashville (BNA) to Brussels (BRU) in December 2025 (see full year).
Return flights
| 10 Dec - 14 Dec | Icelandair | ||
| 25 Dec - 02 Jan | United | ||
| 25 Dec - 03 Jan | Air Canada | ||
| 21 Dec - 04 Jan | Spirit Airlines |
Also check the deals for one-way flights from Nashville to Brussels in December.
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