Metadata
Author: WikiMatrix
Data
English[en]
On 18 December 2012 Air Berlin announced that topbonus, its frequent flyer program, would be sold to Etihad Airways; only a 30-percent minority share would be retained.
Spanish[es]
El 18 de diciembre de 2012, Air Berlin anunció que Topbonus, su programa de viajero frecuente, sería vendido a Etihad Airways.