| Berthoud to Smolyan | 5,962.26 mi (9,595.33 km) |
| Berthoud to Sofia | 5,858.50 mi (9,428.34 km) |
| Berthoud to Sopot | 5,904.13 mi (9,501.78 km) |
| Berthoud to Sozopol | 6,003.60 mi (9,661.86 km) |
| Berthoud to Sredets | 5,993.04 mi (9,644.86 km) |
| Berthoud to Stamboliyski | 5,926.49 mi (9,537.76 km) |
| Berthoud to Stara Zagora | 5,943.03 mi (9,564.39 km) |
| Berthoud to Svilengrad | 5,996.92 mi (9,651.11 km) |
| Berthoud to Svishtov | 5,867.69 mi (9,443.14 km) |
| Berthoud to Targovishte | 5,924.11 mi (9,533.93 km) |
| Berthoud to Teteven | 5,874.79 mi (9,454.57 km) |
| Berthoud to Troyan | 5,890.10 mi (9,479.20 km) |
| Berthoud to Tryavna | 5,914.21 mi (9,518.00 km) |
| Berthoud to Tutrakan | 5,879.71 mi (9,462.48 km) |
| Berthoud to Varna | 5,963.96 mi (9,598.07 km) |
