I was reading the wiki about some airports, and a design made by @TechnocraticAviation caught my eye. So I copied it 
hum… yeah! However I adapted it to look more similar to the new UI.
Luxembourg Airport - LUX
Luxair and Cargolux have hubs at LUX, and while Ryanair does not, it is a big operator at LUX. So I selected the three airlines for local contracts. The tag (limited) on Ryanair is because not all airports are served by Ryanair (irl) from LUX; on Cargolux the tag is because only some local routes have Cargolux flights (irl) e.g. AMS, STN, BUD, PIK. I decided not to include Cargolux Italia, as there is only one flight operated by them out of LUX, with destination to MXP.