The Friendship Express (Turkish: Dostluk Ekspresi, Greek: Εξπρές Φιλίας, Exprés Filías), was an international InterCity train jointly operated by the Turkish State Railways (TCDD) and TrainOSE from July 2005 to February 2011, linking Istanbul's Sirkeci Terminal, Turkey and Thessaloniki, Greece. Eastbound trains (service 444/81021) departed daily at 19:48 from Thessaloniki arriving to Istanbul at 08:07. Westbound trains (service 81022/445) departed at 20:30 from Istanbul, arriving to Thessaloniki at 09:33.