My paternal grandparents left Vienna in July 1939. From their Reisepass, I have been able to construct a timeline of their trip from Vienna to Portugal.  From Vienna they traveled to Italy and remained there until early-November 1940. From Italy they went to Spain and were there for a few days. From Spain, they traveled to Portugal where they remained until June 1941. Then on June 3, 1941, they boarded the SS Nyassa for NYC. I have started a project to try to try to locate records of in-transit Jewish refugees that might tell me where they lived; how they obtained money; how they were able to travel. 
Irv Adler
Fort Wayne, Indiana