The cost of taxi fare from the airport to Oia is about the cost of a rental car for one day. Rental cars give you the flexibility to explore the island on your schedule, not on a bus schedule.
"Santorini Paradise Cave Houses" works exclusively with Sunbird car rental agency and has negotiated special rates for our guests.
We have a 3 year relationship with Sunbird. The cars are new and reliable. A Sunbird representative will meet you at the airport upon arrival. Sunbird will provide directions to Oia and a map of the island with points of interest. They will then notify me when you leave their office so I can arrange to meet you when you arrive in Oia. When leaving the island, simply park the car at the airport.
If you have more than 4-5 people you can rent a mini bus/van. It is not much more expensive if you consider the cost of bus passes for 4-5 people to go to the beaches each day.
If you are not comfortable driving on the island, you can also arrange for transfers with Sunbird.