Arrival at Lübeck Hauptbahnhof (main station) from Kiel or Schwerin (every hour) or Hamburg (very half hour), then either 15 minutes by taxi or 30 minutes by bus.
From Hamburg Airport either by shuttle bus „Jasper“ (every 20 minutes) to Hamburg Hauptbahnhof (main station), then by train as described above or by taxi (approximately 75 €).