Https://parcheweb.com/forum/negocio-parcheweb/preguntas-generales/158140-1~833~297~6750-how-to-change-your-lufthansa-flight-date-a-complete-guide https://parcheweb.com/forum/negocio-parcheweb/preguntas-generales/158140-1~833~297~6750-how-to-change-your-lufthansa-flight-date-a-complete-guide