TJ Warren will also head to the Suns as part of the deal, which has been forced through by new Phoenix owner Mat Ishbia.
That trade request had initiated Durant’s moves behind the scenes at Brooklyn to ascertain the direction of the franchise, leading to him departing.
The addition of Durant to the Suns bolsters a side who were Conference Semi-finalists last season and lost the NBA Finals the year prior to the Milwaukee Bucks.
The Suns, who also boast Deandre Ayton, started strongly this season but have fallen to a 30-26 record amid injuries to Booker and Paul.
Phoenix have won eight of their past 10 to get behind into the mix at the top of the Western Conference, currently sitting fifth.
Monty Williams remains at the helm at Footprint Center, which has also undergone change from within lately with owner Robert Sarver’s departure along with CEO Jason Rowley’s resignation this week.
The situation leaves Brooklyn in a hole, having 12 months ago boasted Irving, Durant and James Harden on their books.