In 1916 Monteux went to the USA and conducted the French operas at the Metropolitan Opera. In 1920 he moved to Boston, conducting many new works by Debussy, Chausson, Darius Milhaud and others. In 1924 he became assistant conductor at the Concertgebouw Orchestra, Amsterdam. He started the Orchestre Symphonique de Paris in 1929, and also a school for conducting, the École Monteux, in Paris. Later he continued this teaching in his American home in Maine. Neville Marriner and André Previn were two of his pupils.