Here is some basic transportation advice for those who are planning tours to Amalfi Coast and Pompeii. Basically, they are alternative options to driving.
If you fly into Naples, from Naples airport, get the bus to Naples station. From there, take the suburban train towards Sorrento, getting off at Pompei Scavi.
- Amalfi Coast
For trips along Amalfi Coast: from Sorrento you can take local buses to Positano, Amalfi, Ravello, the most visited — and that worth to see — places on the Costiera Amalfitana.
For those who fly into Rome, a quick trip to Amalfi Coast requires a couple of days at least. However there is a fast train from Rome to Salerno. From Salerno you follow the suggestions above.