I am looking at a flight from Portland, OR to Rome, going to Philadelphia in June. 1.5 hour layover in Philadelphia, arriving in Rome at 10:30 a.m.

Two questions:

Is the 1.5 hour layover long enough?

Assuming I can exist FCO around noon (going through customs, etc.), so I have enough time to take the train to Salerno and catch a ferry to Amalfi?

Thanks in advance for your assistance!

You would train from the airport to Rome Termini station (travel time 30 minutes and departs every 30 minutes). The train from Rome to Salerno will take 2 - 2 1/2 hours depending on type of train with about hourly departures. You might want to grab something to eat in Termini before heading south though.

I would be afraid of the 1.5 hour connection. Have you checked the ontime record of the incoming flight? (some are under 50%).

Thanks KY! So at a minimum I would need a ferry that departed Salerno after 3:30, to be safe. I'll see if I can find an approximate ferry schedule.
Good point NYT - do you know where I could find the ontime records of various flights?

You'll almost certainly know of the bus alternative... the SITA line has a route that passes through the station forecourt at Salerno, on its way to Amalfi.

Just in case!

Peter