If possible, buy metro tickets in advance to avoid long queues at the machines
It is the cheapest solution. Types of ticket (for those who want to take only the bus, the metro and the funiculars of Naples, consider only the "URBANO NAPOLI" price list) :
WHERE TO BUY TICKETS AND SEASON PASSES
ANM and integrated company travel tickets are available at: authorized resellers of the Unico Campania circuit, Anm Point, automatic ticket machines present inside metro and funicular stations.
Distance: 14 minutes (but bear in mind that each ride can pass even after 15 minutes)
Optimal distance from the b& b: 24 minutes.