| Treviglio to Smolyan | 802.44 mi (1,291.40 km) |
| Treviglio to Sofia | 707.80 mi (1,139.10 km) |
| Treviglio to Sopot | 776.65 mi (1,249.90 km) |
| Treviglio to Sozopol | 923.45 mi (1,486.15 km) |
| Treviglio to Sredets | 901.01 mi (1,450.04 km) |
| Treviglio to Stamboliyski | 779.29 mi (1,254.15 km) |
| Treviglio to Stara Zagora | 824.82 mi (1,327.41 km) |
| Treviglio to Svilengrad | 868.07 mi (1,397.02 km) |
| Treviglio to Svishtov | 785.36 mi (1,263.92 km) |
| Treviglio to Targovishte | 851.80 mi (1,370.85 km) |
| Treviglio to Teteven | 747.40 mi (1,202.82 km) |
| Treviglio to Troyan | 769.69 mi (1,238.70 km) |
| Treviglio to Tryavna | 807.62 mi (1,299.74 km) |
| Treviglio to Tutrakan | 839.39 mi (1,350.87 km) |
| Treviglio to Varna | 916.85 mi (1,475.52 km) |
