| Montecatini Terme to Smolyan | 723.59 mi (1,164.50 km) |
| Montecatini Terme to Sofia | 636.24 mi (1,023.93 km) |
| Montecatini Terme to Sopot | 707.58 mi (1,138.74 km) |
| Montecatini Terme to Sozopol | 857.82 mi (1,380.52 km) |
| Montecatini Terme to Sredets | 833.94 mi (1,342.09 km) |
| Montecatini Terme to Stamboliyski | 704.90 mi (1,134.43 km) |
| Montecatini Terme to Stara Zagora | 755.52 mi (1,215.90 km) |
| Montecatini Terme to Svilengrad | 794.19 mi (1,278.12 km) |
| Montecatini Terme to Svishtov | 726.93 mi (1,169.88 km) |
| Montecatini Terme to Targovishte | 791.61 mi (1,273.97 km) |
| Montecatini Terme to Teteven | 680.01 mi (1,094.38 km) |
| Montecatini Terme to Troyan | 702.84 mi (1,131.10 km) |
| Montecatini Terme to Tryavna | 742.05 mi (1,194.21 km) |
| Montecatini Terme to Tutrakan | 786.87 mi (1,266.34 km) |
| Montecatini Terme to Varna | 858.29 mi (1,381.29 km) |
