| Morsang-sur-Orge to Smolyan | 1,188.76 mi (1,913.13 km) |
| Morsang-sur-Orge to Sofia | 1,089.03 mi (1,752.63 km) |
| Morsang-sur-Orge to Sopot | 1,153.73 mi (1,856.75 km) |
| Morsang-sur-Orge to Sozopol | 1,293.43 mi (2,081.58 km) |
| Morsang-sur-Orge to Sredets | 1,273.17 mi (2,048.97 km) |
| Morsang-sur-Orge to Stamboliyski | 1,161.76 mi (1,869.68 km) |
| Morsang-sur-Orge to Stara Zagora | 1,201.07 mi (1,932.94 km) |
| Morsang-sur-Orge to Svilengrad | 1,248.42 mi (2,009.14 km) |
| Morsang-sur-Orge to Svishtov | 1,150.03 mi (1,850.80 km) |
| Morsang-sur-Orge to Targovishte | 1,216.75 mi (1,958.18 km) |
| Morsang-sur-Orge to Teteven | 1,123.39 mi (1,807.93 km) |
| Morsang-sur-Orge to Troyan | 1,144.56 mi (1,841.98 km) |
| Morsang-sur-Orge to Tryavna | 1,180.11 mi (1,899.20 km) |
| Morsang-sur-Orge to Tutrakan | 1,194.75 mi (1,922.76 km) |
| Morsang-sur-Orge to Varna | 1,278.01 mi (2,056.76 km) |
