Bulgarian Railways (BDZh) operates a train from Plovdiv to Alexandroupoli once daily. Tickets cost $5 - $6 and the journey takes 43 min. Greek Railways (OSE) also services this route 3 times a day. Alternatively, KTEL Rodopis operates a bus from Plovdiv to Alexandroupoli once daily, and the journey takes 4 h. KTEL Evrou also services this route hourly.
How to get from Plovdiv to Alexandroupoli
From Plovdiv train to Svilengrad, drive to Dikaia, then train to Alexandroupoli. 4 h 17 min 17€. From Plovdiv bus to Komotini then bus to Alexandroupoli. 5 h 41 min 5€. From Plovdiv bus to Alexandroupoli. 6 h 15 min 16€. From Plovdiv drive to Alexandroupoli. 3 h 9 min 46€.