Hello, What are the opening hours of your office at the Airport in Athens ? because my flight arrives at 23:30 and I saw there was 24€ of fees for renting a car outside of the opening hours.
Agent
Yes, some suppliers ask for a "Late hours" fee but try a few different suppliers as their opening times may differ...
For example, Hertz, Budget, AutoUnion and Sixt are all open 24hrs.