With more than 365 days in space, Fincke is the third in the list of most experienced American astronauts. He holds the record, along with cosmonaut Gennady Padalka, for International Space Station-based spacewalks: he has logged 26 hours on six spacewalks wearing the Russian Orlan spacesuit.
He has flown twice aboard Soyuz to the Space Station, for Expeditions 9 and 18. For his first long-duration mission, in 2004, Fincke spent six months aboard the Station.
In 2009 he served as the Station Commander. Michael Fincke and his three crewmates helped to prepare the Station for future six-person crews. He speaks Japanese and Russian.