As subsidiary of Carnival Corporation & plc
In 2001, P&O Princess Cruises acquired the remaining 49% interest in AIDA and the cruise business associated with Seetours International.[7] In 2003, P&O Princess merged with Carnival Corporation, to form Carnival Corporation & plc, the world's largest cruise holiday company.[8] The Seetours cruise business, that had been acquired by P&O, was rebranded as AIDA Cruises in 2004.[9]
Following the merger, executive control of AIDA Cruises was transferred to Costa Cruises Group, one of the main operating companies of Carnival Corporation & plc, with responsibility for the group's European brands.[9][10] AIDA Cruises is now one of ten brands owned by Carnival Corporation & plc, based at Miami, Florida, accounting for 6.5% of its share of revenue[11] and has been led by President Felix Eichhorn since 1 September 2015.[12]
In October 2017, AIDAcara departed from Hamburg on the company's first World Cruise. After a 116-day sailing, the ship returned to Hamburg on 10 February 2018.[13] The ship visited Southampton, Lisbon, Madeira, Rio de Janeiro, Ushuaia, Easter Island, Tahiti, Singapore, and the Maldives, among other destinations.[14] On 8 October 2018 AIDAaura left Hamburg on the company's second World Cruise; the 117-day voyage visited 41 ports in 20 countries on four continents.[15] Several of the destinations were new to the company, including South Africa, Namibia, Melbourne, Tasmania, Fiji, Samoa and New Caledonia.[16]
In December 2018, AIDA debuted AIDAnova, the first cruise ship to be fully powered by liquefied natural gas (LNG).[17] Earlier, in May 2016, AIDAprima and AIDAsol had become the first two ships in the AIDA fleet to be simultaneously powered by LNG.[18] In August 2019, AIDA signed an agreement with Corvus Energy to install battery storage systems for the electrification of their ships.[19] In October 2019, AIDA announced that it would test a new fuel-cell technology for large-scale cruise ships aboard the AIDAnova as early as 2021.[20]