Expedition 19 is scheduled to be the 19th expedition to the International Space Station. This expedition is scheduled to start in March 2009. Expedition 19 will be the final three crew member expedition, before the crew size is increased to six crew members with Expedition 20. Because of the shift to six crew members there will be a reduction in the average duration of the expeditions from six to three months.
The expedition will be commanded by Russian Air Force Colonel Gennady Padalka.