The Georgia Tech grad and his fellow Expedition 50 cosmonauts undocked around 4 a.m. Monday morning and landed in Kazakhstan shortly after 7 a.m.
After this mission, Kimbrough has officially spent 189 days in space and according to The Verge, brought his total number of career spacewalks to six.
Borisenko logged 337 days in space and Ryzhikov, 173 days.
NASA covered the departure and landing on its NASA TV channel, including the moment Kimbrough turned over command of the ISS to astronaut Peggy Whitson for Expedition 51, and will be replaying coverage throughout the day.
Read more on NASA.gov.