| Montabaur to Smolyan | 1,010.93 mi (1,626.93 km) |
| Montabaur to Sofia | 907.11 mi (1,459.85 km) |
| Montabaur to Sopot | 964.14 mi (1,551.64 km) |
| Montabaur to Sozopol | 1,091.76 mi (1,757.01 km) |
| Montabaur to Sredets | 1,074.37 mi (1,729.03 km) |
| Montabaur to Stamboliyski | 979.02 mi (1,575.58 km) |
| Montabaur to Stara Zagora | 1,009.00 mi (1,623.83 km) |
| Montabaur to Svilengrad | 1,060.21 mi (1,706.24 km) |
| Montabaur to Svishtov | 947.03 mi (1,524.09 km) |
| Montabaur to Targovishte | 1,012.00 mi (1,628.66 km) |
| Montabaur to Teteven | 933.51 mi (1,502.34 km) |
| Montabaur to Troyan | 952.60 mi (1,533.07 km) |
| Montabaur to Tryavna | 984.30 mi (1,584.07 km) |
| Montabaur to Tutrakan | 981.97 mi (1,580.33 km) |
| Montabaur to Varna | 1,068.08 mi (1,718.90 km) |
