| Bay City to Smolyan | 5,074.60 mi (8,166.78 km) |
| Bay City to Sofia | 4,970.54 mi (7,999.32 km) |
| Bay City to Sopot | 5,025.10 mi (8,087.11 km) |
| Bay City to Sozopol | 5,142.95 mi (8,276.78 km) |
| Bay City to Sredets | 5,128.36 mi (8,253.29 km) |
| Bay City to Stamboliyski | 5,041.97 mi (8,114.27 km) |
| Bay City to Stara Zagora | 5,068.34 mi (8,156.71 km) |
| Bay City to Svilengrad | 5,120.80 mi (8,241.13 km) |
| Bay City to Svishtov | 5,000.34 mi (8,047.27 km) |
| Bay City to Targovishte | 5,062.23 mi (8,146.87 km) |
| Bay City to Teteven | 4,994.66 mi (8,038.13 km) |
| Bay City to Troyan | 5,012.68 mi (8,067.13 km) |
| Bay City to Tryavna | 5,041.91 mi (8,114.17 km) |
| Bay City to Tutrakan | 5,024.46 mi (8,086.09 km) |
| Bay City to Varna | 5,111.12 mi (8,225.56 km) |
