We were thinking of taking a boat from Sorrento to Naples to catch a flight. Any suggestions on this? How much does it cost and how fast/slow is it?
The train is only about 5 euros and is pretty frequent. Is there a particular reason why you want to "boat it" there?
just was thinking of something different, but will probably take the train anyway.
Your most comfortable route would be the Curreri Viaggi bus right to the airport. 10E 1.5 hrs
Having done all three: fast ferry, Circumvesuviano train and the direct airport bus... that one is a no brainer -- the BUS Gerri mentioned!
You'd have to transfer to a taxi or a city bus from the ferry or the train. The airport is actually quite handy to the highway that the bus service takes.
We decided to hire a private driver who picked us up at the hotel and dropped us off at the airport. If I remember right it was about 60 or 80 Euros. The hotel arranged it.