| Madison to Smolyan | 5,298.32 mi (8,526.83 km) |
| Madison to Sofia | 5,194.05 mi (8,359.02 km) |
| Madison to Sopot | 5,246.46 mi (8,443.37 km) |
| Madison to Sozopol | 5,359.95 mi (8,626.00 km) |
| Madison to Sredets | 5,346.34 mi (8,604.11 km) |
| Madison to Stamboliyski | 5,264.80 mi (8,472.87 km) |
| Madison to Stara Zagora | 5,288.72 mi (8,511.37 km) |
| Madison to Svilengrad | 5,341.69 mi (8,596.62 km) |
| Madison to Svishtov | 5,218.63 mi (8,398.57 km) |
| Madison to Targovishte | 5,279.29 mi (8,496.20 km) |
| Madison to Teteven | 5,216.22 mi (8,394.70 km) |
| Madison to Troyan | 5,233.60 mi (8,422.66 km) |
| Madison to Tryavna | 5,261.60 mi (8,467.72 km) |
| Madison to Tutrakan | 5,239.70 mi (8,432.48 km) |
| Madison to Varna | 5,326.02 mi (8,571.39 km) |
