| Owosso to Smolyan | 5,112.99 mi (8,228.57 km) |
| Owosso to Sofia | 5,008.98 mi (8,061.17 km) |
| Owosso to Sopot | 5,063.78 mi (8,149.37 km) |
| Owosso to Sozopol | 5,182.12 mi (8,339.81 km) |
| Owosso to Sredets | 5,167.42 mi (8,316.16 km) |
| Owosso to Stamboliyski | 5,080.48 mi (8,176.24 km) |
| Owosso to Stara Zagora | 5,107.14 mi (8,219.14 km) |
| Owosso to Svilengrad | 5,159.53 mi (8,303.45 km) |
| Owosso to Svishtov | 5,039.39 mi (8,110.11 km) |
| Owosso to Targovishte | 5,101.40 mi (8,209.91 km) |
| Owosso to Teteven | 5,033.33 mi (8,100.36 km) |
| Owosso to Troyan | 5,051.42 mi (8,129.48 km) |
| Owosso to Tryavna | 5,080.79 mi (8,176.74 km) |
| Owosso to Tutrakan | 5,063.83 mi (8,149.45 km) |
| Owosso to Varna | 5,150.52 mi (8,288.96 km) |
