Step 1.
You can book a flight to Naples International Airport (APF).
Step 2.
A.
You can then get a taxi to wherever you are staying in Ravello. There are the phone numbers to several taxi companies located in the "transportation" tab
B.
You can also rent a car and drive to Ravello. Please note that in order to rent a car you will need to get an international drivers license before getting to Italy. Italy has very tight roads and limited parking spots.
C.
There is a bus that you can take from Naples airport to Ravello and you can find tickets on the website Rome2rio.com. This option is the cheapest , but will take the most time.
If you have any questions feel free to text me.