The airport FAQ is blunt: the closest train station is Luxembourg Central, 10 km away. Any guide promising an airport 'halt' is confusing the 2025 tram with a railway.
Public transport in Luxembourg has been completely free for everyone, residents or visitors, since March 2020. Visitors still hunt for fares to buy and stall at the tram doors.
Because of the tram works the airport has moved pre-booked taxi pick-up (and private coach drop-off) — current notice says Kiss & Fly Parking C. The terminal-forecourt rank is now walk-up taxis only.
For security reasons lux-Airport operates no luggage storage at all — awkward for long layovers and fly-in meet-ups.
The airport's own FAQ states the Flibco fly-bus currently provides no connection from Luxembourg Airport — old itinerary pages and border-parking guides still show it as the cheap link to Trier.