If you have arrived at Thessaloniki Airport, you will still need to get to the resort itself. The cost is 120 EUR and you will travel 100 km to Neos Marmaras resort in 1 hour 40 minutes.
You can also use public transportation. In Greece intercity transportation is carried out by the bus company K.T.E.L. You can get acquainted with the schedule of buses from Thessaloniki airport here, but you should remember that in Greece the schedule is not always observed, to put it mildly, and the bus, which came half an hour later, is quite normal. The fare from Thessaloniki to Neos Marmaras is 13 EUR.
Many travelers prefer to rent a car directly at the airport. In order for Europcar representatives to organize cheap car rental in Neos Marmaras, you should take care of early booking of the car on the following resource.