Delta Airlines have agreed to buy back the intellectual property for their passenger servicing systems (PSS) from Travelport and take on some 175 staff that work on the Deltamatic system transferred to Travelport (Worldspan) some years ago. Delta, like a small number of other airlines are signalling their intention to reverse the market trend for purchase of market based community solutions. Delta are unique however with over 168 million passengers boarded in 2013 including franchise carrier volumes.