High-speed train from Thessaloniki to Athens
From the Ministry of Infrastructure and Transport in Greece, is published they will operate a high-speed train between Thessaloniki and Athens on June 6. The mentioned relation high-speed train will (together with station standings), cross in 3h and 20 minutes, instead of the previous 6 or more hours. This will be very important for the transport of passengers and for the transport of goods.
By the end of 2019, it is expected that rail transport to Serbia and Bulgaria will also be significantly improved.
From Thessaloniki to Athens you can travel by plane. Flights are regular and very affordable, from 19€ in one direction and more. At this moment, flight to Athens is a more cost-effective solution than a train, and it lasts much shorter, only 30 minutes.