| Colonia to Smolyan | 4,832.99 mi (7,777.94 km) |
| Colonia to Sofia | 4,730.67 mi (7,613.28 km) |
| Colonia to Sopot | 4,790.81 mi (7,710.06 km) |
| Colonia to Sozopol | 4,919.74 mi (7,917.55 km) |
| Colonia to Sredets | 4,902.53 mi (7,889.87 km) |
| Colonia to Stamboliyski | 4,803.31 mi (7,730.18 km) |
| Colonia to Stara Zagora | 4,836.41 mi (7,783.45 km) |
| Colonia to Svilengrad | 4,886.81 mi (7,864.57 km) |
| Colonia to Svishtov | 4,775.09 mi (7,684.77 km) |
| Colonia to Targovishte | 4,839.72 mi (7,788.78 km) |
| Colonia to Teteven | 4,760.14 mi (7,660.71 km) |
| Colonia to Troyan | 4,779.82 mi (7,692.38 km) |
| Colonia to Tryavna | 4,812.24 mi (7,744.55 km) |
| Colonia to Tutrakan | 4,807.48 mi (7,736.88 km) |
| Colonia to Varna | 4,894.13 mi (7,876.33 km) |
