George resigned from BA in October, ending his 19-year career with the airline. He had been on a four-month leave of absence after the airline's offices were raided by the Office of Fair Trading. The OFT had been tipped off that BA was involved in the fixing of fuel surcharges.
George was offered the position at Manchester United before Christmas. The football club was unavailable for comment.
George's former colleague, BA head of communications Iain Burns, who also quit over the scandal, has since taken the role of vice-president of corporate communications at UAE carrier Etihad Airways.