AIDAblu is the seventh ship[5] in the cruise line.

[6] She is a sister ship to AIDAdiva, AIDAbella, AIDAluna[5] with a half deck more, and is followed by similar AIDAsol and AIDAmar.

AIDAblu has six restaurants, ten bars,[4] 8,120 square metres (87,000 sq ft) of outer deck area and 3,000 square metres (32,000 sq ft) theatrium.

In 2010 Francesco Schettino, the captain of the ill-fated Costa Concordia before, was the captain of the Costa Atlantica, also a Carnival Corporation ship as it entered the port of Warnemünde, Germany, at too high a speed, allegedly causing damage to the AIDAblu.

[7] On 18 May 2020, whilst the ship was docked in Hamburg, a male Filipino crew member of AIDAblu who had worked in the galley department was found dead in his cabin.