| Acqui Terme to Smolyan | 844.31 mi (1,358.79 km) |
| Acqui Terme to Sofia | 753.84 mi (1,213.19 km) |
| Acqui Terme to Sopot | 824.30 mi (1,326.58 km) |
| Acqui Terme to Sozopol | 973.32 mi (1,566.41 km) |
| Acqui Terme to Sredets | 950.05 mi (1,528.96 km) |
| Acqui Terme to Stamboliyski | 823.86 mi (1,325.88 km) |
| Acqui Terme to Stara Zagora | 872.46 mi (1,404.08 km) |
| Acqui Terme to Svilengrad | 913.13 mi (1,469.55 km) |
| Acqui Terme to Svishtov | 838.64 mi (1,349.66 km) |
| Acqui Terme to Targovishte | 904.37 mi (1,455.44 km) |
| Acqui Terme to Teteven | 795.90 mi (1,280.88 km) |
| Acqui Terme to Troyan | 818.55 mi (1,317.32 km) |
| Acqui Terme to Tryavna | 857.27 mi (1,379.64 km) |
| Acqui Terme to Tutrakan | 895.64 mi (1,441.39 km) |
| Acqui Terme to Varna | 970.38 mi (1,561.67 km) |
