Warburg Pincus LLC is looking to sell Accelya Holding World in a deal expected to value the Barcelona-based airline services firm at up to €1.5 billion, Reuters reported, citing two sources familiar with the matter.

The sources told Reuters that the private equity firm has hired Bank of America to advise on the possible sale and could launch an auction process after the summer, with Accelya's Spanish rival Amadeus IT Group SA being eyed as a potential bidder, according to one of the sources.

Warburg Pincus and Bank of America declined to comment, the newswire added.