Stromboli from north or from south
Focal hubs to reach Stromboli are Naples and Sicily.
From Naples to Stromboli
From Naples you can take the hydrofoil. During the high season hydrofoils run twice a day, at 9 am with arrival at about 1,30 or 2 pm and at 2 pm with arrival at about 6.60 or 7 pm depending on the sea. Companies offering this service are:
Alternatively, you can travel by boat, departure time 8 pm arrival in Stromboli at 6 am. The company offering this service is Siremar: http://www.siremar.it/
From Sicily to Stromboli
From Messina and fom Milazzo there are several ferries and hydrofoils, some of which require ferry changes in Lipari or other Aeolian islands, leading to Stromboli island.
Ustica Lines: http://www.usticalines.it/