AirHint found the following cheapest return flights from Ljubljana (LJU) to Brussels (BRU) in September 2026 (see full year).
Return flights
| 12 Sep - 13 Sep | LOT | ||
| 20 Sep - 24 Sep | Vueling Airlines | ||
| 12 Sep - 13 Sep | Brussels Airlines | direct | |
| 13 Sep - 24 Sep | Vueling Airlines | ||
| 13 Sep - 17 Sep | Vueling Airlines |
Also check the deals for one-way flights from Ljubljana to Brussels in September.
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