When we have finally reached our cruising altitude, Marc Lasry, the billionaire co-owner of the Milwaukee Bucks, rises from his custom leather seat to make the night’s one and only in-flight announcement.



“Red or white?”



Decisions, decisions. There is commercial air travel, and then there is traveling like this; aboard a luxury private jet and landing courtside to watch Giannis Antetokounmpo lead the Bucks to the second-best record in the Eastern Conference. It’s a dizzying seven-hour excursion from Teterboro Airport in New Jersey to Milwaukee and back that Lasry, usually accompanied by 12 invited passengers, makes approximately 25 times each NBA season since he and Wes Edens purchased the franchise for $550 million in 2014.



“This is the greatest country in the world,” says Lasry, who migrated from Morocco to the United States 52 years ago with nothing more than two loving parents, two sisters and a dream to make a better...