Originally Posted by corporate-wage-slave

I haven't checked this, but I have a feeling that LUX is different to say BRU (which currently has some interesting fares too). I don't think BAH offer LUX as a starting point for their trips. The reason is that within Europe the legal framework for package holidays varies slightly from country to country, and for smaller countries it's just not worth going through all the due diligence for a handful of passengers. There is an overarching set of protections for package holidays within the European Union, but in distinction to flight protections, the decision was made to devolve a lot of the operations down under the subsidiarity principle.

Just start from BRU instead.