| Colleferro to Smolyan | 602.73 mi (970.00 km) |
| Colleferro to Sofia | 531.61 mi (855.55 km) |
| Colleferro to Sopot | 603.48 mi (971.21 km) |
| Colleferro to Sozopol | 753.58 mi (1,212.77 km) |
| Colleferro to Sredets | 728.18 mi (1,171.90 km) |
| Colleferro to Stamboliyski | 592.15 mi (952.97 km) |
| Colleferro to Stara Zagora | 649.02 mi (1,044.50 km) |
| Colleferro to Svilengrad | 678.90 mi (1,092.59 km) |
| Colleferro to Svishtov | 639.24 mi (1,028.75 km) |
| Colleferro to Targovishte | 698.29 mi (1,123.78 km) |
| Colleferro to Teteven | 580.02 mi (933.46 km) |
| Colleferro to Troyan | 602.59 mi (969.77 km) |
| Colleferro to Tryavna | 642.13 mi (1,033.40 km) |
| Colleferro to Tutrakan | 705.91 mi (1,136.05 km) |
| Colleferro to Varna | 765.17 mi (1,231.41 km) |
