| Borgo San Lorenzo to Smolyan | 694.13 mi (1,117.09 km) |
| Borgo San Lorenzo to Sofia | 606.11 mi (975.44 km) |
| Borgo San Lorenzo to Sopot | 677.34 mi (1,090.08 km) |
| Borgo San Lorenzo to Sozopol | 827.46 mi (1,331.67 km) |
| Borgo San Lorenzo to Sredets | 803.65 mi (1,293.34 km) |
| Borgo San Lorenzo to Stamboliyski | 675.03 mi (1,086.36 km) |
| Borgo San Lorenzo to Stara Zagora | 725.33 mi (1,167.30 km) |
| Borgo San Lorenzo to Svilengrad | 764.34 mi (1,230.08 km) |
| Borgo San Lorenzo to Svishtov | 696.25 mi (1,120.50 km) |
| Borgo San Lorenzo to Targovishte | 761.00 mi (1,224.70 km) |
| Borgo San Lorenzo to Teteven | 649.67 mi (1,045.54 km) |
| Borgo San Lorenzo to Troyan | 672.47 mi (1,082.24 km) |
| Borgo San Lorenzo to Tryavna | 711.64 mi (1,145.27 km) |
| Borgo San Lorenzo to Tutrakan | 756.08 mi (1,216.79 km) |
| Borgo San Lorenzo to Varna | 827.65 mi (1,331.97 km) |
