Lufthansa Regional ceased by autumn 2014 and were rebranded to Germanwings, the last ones to and from Düsseldorf. Redevelopment into a low-cost carrier In July 2014, the Lufthansa Group announced that Eurowings would replace its 23 Bombardier CRJ900 aircraft with 23 Airbus A320s. Ten of the A320s would be new orders, and 13 would be transferred from Lufthansa Group orders between February 2015 and March 2017. Lufthansa also announced Eurowings' transformation from a regional airline into a low-cost long and short-haul carrier by the end of 2015. On 1 February 2015, Eurowings started operating the Airbus A320-200, after taking delivery of its first on 20 January, which was received from Lufthansa and repainted in Eurowings' new livery. This and further A320s would be operated on behalf of Germanwings for most of 2015, until Lufthansa consolidated its low-cost operations under the new Eurowings brand by end of that year. Additionally, in February 2015, the Lufthansa Group announced that SunExpress Deutschland would be the operator of Eurowings' new long-haul operations, which were to be based at Cologne Bonn Airport from November 2015. SunExpress Deutschland therefore would receive leased Airbus A330-200s. Eurowings also announced the establishment of its first base outside of Germany, at Vienna International Airport, where the aircraft were planned be operated by Austrian Airlines under the Eurowings brand. Previous plans to establish the first foreign base at Basel/Mulhouse were cancelled. In June 2015, the Lufthansa Group announced the application for an additional Air operator's certificate (AOC) for Eurowings in Austria, called Eurowings Europe, under which all new Airbus A320-200s would be operated while the "current" German Eurowings would continue to operate the existing fleet. This was planned due to lower operational costs based on Austrian Airlines union agreements. On 2 October 2015, Lufthansa announced a change of plans for their Vienna operations. Austrian Airlines would not operate some routes for the Eurowings brand as planned; instead, Eurowings Europe would handle all these flights itself. In October 2015, Eurowings took over 55 Germanwings routes. By April 2016, Eurowings had taken over several more routes. Eurowings has been solely responsible for all sales under the Germanwings brand since October 2015. From November 2015, Eurowings were offering one-way fares to destinations in the Caribbean and Thailand for as little as 99 euros. In December 2015, Eurowings' new long-haul operations faced severe criticism, as every fourth flight was delayed by an average of 5.8