Bon voyage is another way of saying have a good journey. The words 'bon voyage' are actually the French translation of have a good journey. There are many translations of this common phrase such as saying bon voyage in Italian as 'buon viaggio!' Bon voyage translated into other languages include the German equivalent of 'gute fahrt!' If you want to say bon voyage in Norwegian, you would say, 'god reise! or god tur!' If you want to express this in Spanish, you would say,'buen viaje!'