In 1946, at the end of World War II, with the meagre remaining fleet, the lines between mainland Italy and its Islands re-started.
Tirrenia thus gave its full commitment towards the reconstruction of the Country.

By 1950 already, the Company not only recouped the prior traffic capacity of 1936, but reached new records, be it with the composite characteristic of the fleet. Freighters reached the tonnage of 436.000, while the passenger capacity totalled 700.000 units; concurrently a new type of activity was to peak: passengers travelling with their vehicles.