The first president to cross the Atlantic Ocean while in office, he did so to meet with other world leaders
While he carried no official mail in the Spirit to Paris or during the .... 
single-pilot flight of a heavier-than-air aircraft across the Atlantic Ocean in the... [DOC] [TLE] List of international trips made by the President of the United States ... [PAR] In 1943 he became the first incumbent president to fly by airplane across the 
Atlantic Ocean during his secret mission to Casablanca.