| Montemor-o-Velho to Smolyan | 1,735.95 mi (2,793.73 km) |
| Montemor-o-Velho to Sofia | 1,657.54 mi (2,667.55 km) |
| Montemor-o-Velho to Sopot | 1,729.68 mi (2,783.65 km) |
| Montemor-o-Velho to Sozopol | 1,880.72 mi (3,026.73 km) |
| Montemor-o-Velho to Sredets | 1,856.04 mi (2,987.02 km) |
| Montemor-o-Velho to Stamboliyski | 1,722.57 mi (2,772.21 km) |
| Montemor-o-Velho to Stara Zagora | 1,776.85 mi (2,859.56 km) |
| Montemor-o-Velho to Svilengrad | 1,810.79 mi (2,914.18 km) |
| Montemor-o-Velho to Svishtov | 1,754.14 mi (2,823.02 km) |
| Montemor-o-Velho to Targovishte | 1,817.91 mi (2,925.64 km) |
| Montemor-o-Velho to Teteven | 1,703.57 mi (2,741.63 km) |
| Montemor-o-Velho to Troyan | 1,726.46 mi (2,778.47 km) |
| Montemor-o-Velho to Tryavna | 1,766.05 mi (2,842.18 km) |
| Montemor-o-Velho to Tutrakan | 1,815.06 mi (2,921.06 km) |
| Montemor-o-Velho to Varna | 1,884.91 mi (3,033.48 km) |
