| Kallithea to Smolyan | 256.59 mi (412.94 km) |
| Kallithea to Sofia | 328.77 mi (529.10 km) |
| Kallithea to Sopot | 329.41 mi (530.13 km) |
| Kallithea to Sozopol | 373.83 mi (601.62 km) |
| Kallithea to Sredets | 355.71 mi (572.47 km) |
| Kallithea to Stamboliyski | 292.38 mi (470.53 km) |
| Kallithea to Stara Zagora | 326.39 mi (525.27 km) |
| Kallithea to Svilengrad | 295.13 mi (474.97 km) |
| Kallithea to Svishtov | 400.91 mi (645.20 km) |
| Kallithea to Targovishte | 396.14 mi (637.52 km) |
| Kallithea to Teteven | 344.45 mi (554.35 km) |
| Kallithea to Troyan | 345.02 mi (555.26 km) |
| Kallithea to Tryavna | 352.65 mi (567.54 km) |
| Kallithea to Tutrakan | 447.99 mi (720.97 km) |
| Kallithea to Varna | 425.74 mi (685.17 km) |
