Flint was selected by the New England Patriots with the 177th pick in the 1979 NFL Draft.[2] He missed the 1979 season due to a knee injury.[3] He was released by the Patriots on September 1, 1980.[4]
Cleveland Browns
Flint signed with the Cleveland Browns on September 27, 1980.[5] He played in 38 games for the team from 1980 to 1982.[2] In July 1983, he was named out of action indefinitely with a broken right ankle.[3] He was later released by the Browns.[6]
Buffalo Bills
Flint was signed by the Buffalo Bills on December 13, 1983, and played in one game for the Bills during the 1983 season.[2][7] He was released by the Bills on July 30, 1984.[8]