| Marshfield to Smolyan | 5,247.62 mi (8,445.22 km) |
| Marshfield to Sofia | 5,143.31 mi (8,277.36 km) |
| Marshfield to Sopot | 5,194.36 mi (8,359.51 km) |
| Marshfield to Sozopol | 5,305.13 mi (8,537.79 km) |
| Marshfield to Sredets | 5,292.12 mi (8,516.84 km) |
| Marshfield to Stamboliyski | 5,213.56 mi (8,390.42 km) |
| Marshfield to Stara Zagora | 5,235.97 mi (8,426.48 km) |
| Marshfield to Svilengrad | 5,289.21 mi (8,512.16 km) |
| Marshfield to Svishtov | 5,164.70 mi (8,311.79 km) |
| Marshfield to Targovishte | 5,224.60 mi (8,408.18 km) |
| Marshfield to Teteven | 5,164.26 mi (8,311.08 km) |
| Marshfield to Troyan | 5,181.23 mi (8,338.38 km) |
| Marshfield to Tryavna | 5,208.46 mi (8,382.21 km) |
| Marshfield to Tutrakan | 5,184.00 mi (8,342.83 km) |
| Marshfield to Varna | 5,270.03 mi (8,481.29 km) |
