| San Bonifacio to Smolyan | 721.26 mi (1,160.76 km) |
| San Bonifacio to Sofia | 625.94 mi (1,007.35 km) |
| San Bonifacio to Sopot | 694.54 mi (1,117.75 km) |
| San Bonifacio to Sozopol | 841.14 mi (1,353.69 km) |
| San Bonifacio to Sredets | 818.75 mi (1,317.65 km) |
| San Bonifacio to Stamboliyski | 697.61 mi (1,122.69 km) |
| San Bonifacio to Stara Zagora | 742.69 mi (1,195.24 km) |
| San Bonifacio to Svilengrad | 786.25 mi (1,265.35 km) |
| San Bonifacio to Svishtov | 703.03 mi (1,131.42 km) |
| San Bonifacio to Targovishte | 769.46 mi (1,238.33 km) |
| San Bonifacio to Teteven | 665.22 mi (1,070.56 km) |
| San Bonifacio to Troyan | 687.47 mi (1,106.38 km) |
| San Bonifacio to Tryavna | 725.33 mi (1,167.31 km) |
| San Bonifacio to Tutrakan | 757.30 mi (1,218.76 km) |
| San Bonifacio to Varna | 834.54 mi (1,343.06 km) |
