I am going to Kallithea this september. I was advised to fly to Thessaloniki and from there to take a bus/taxi. Is there a closer airport to Kallithea? Is there any train to get there?
No Thessaloniki is the only airport in the area, and there is no train.
To get to Kalithea you will need to get a taxi approx 60 euro, or you can hire a car at the airport.
Hope this has helped you.