The 37-year-old actor got separated from Kerr, 31, last year, reported Femalefirst.
"He's four in January. So his mom is really close, which is great. So we'll be able to do Christmas together. Her family, my family. We'll all kind of come together," Bloom said.
Bloom always stressed on the importance of remaining on good terms with Kerr for their son.
"We're a family and we'll always love each other and we're going to be in each other's lives. What Flynn reads and knows about when he's a grown up is more important to me than anything, We both love and cherish each other and then our boy so it's great."