Sheikh Mansour will cover travel costs for fans attending the Champions League final.
Both Manchester City and Chelsea are allowed to take 6000 fans for the Champions League final at Porto on May 29.
The fans are expected to book their flights and transfers through the club’s official website.
Sheikh Mansour said: “Pep and the team have had such a remarkable season and their reaching the Champions League Final after a very challenging year represents a truly historic moment for the club.
“It is therefore incredibly important that as many fans as possible have the opportunity to attend this special game.
“Especially those who have supported Manchester City through good and bad times for so many years.”
Chairman Khaldoon Al Mubarak said: “The challenges faced by supporters ahead of this final are multiple, both in financial and logistical terms.
“Hopefully His Highness’ initiative allows the majority of our attending fans to focus on enjoying the day rather than worrying about how to bear the burden of travel costs which have become all the more onerous due to the effects of the pandemic.”