| Wisconsin Rapids to Smolyan | 5,248.98 mi (8,447.42 km) |
| Wisconsin Rapids to Sofia | 5,144.68 mi (8,279.56 km) |
| Wisconsin Rapids to Sopot | 5,196.06 mi (8,362.25 km) |
| Wisconsin Rapids to Sozopol | 5,307.51 mi (8,541.61 km) |
| Wisconsin Rapids to Sredets | 5,294.35 mi (8,520.43 km) |
| Wisconsin Rapids to Stamboliyski | 5,215.05 mi (8,392.82 km) |
| Wisconsin Rapids to Stara Zagora | 5,237.83 mi (8,429.47 km) |
| Wisconsin Rapids to Svilengrad | 5,291.01 mi (8,515.05 km) |
| Wisconsin Rapids to Svishtov | 5,166.85 mi (8,315.24 km) |
| Wisconsin Rapids to Targovishte | 5,226.94 mi (8,411.94 km) |
| Wisconsin Rapids to Teteven | 5,165.93 mi (8,313.76 km) |
| Wisconsin Rapids to Troyan | 5,182.99 mi (8,341.22 km) |
| Wisconsin Rapids to Tryavna | 5,210.41 mi (8,385.35 km) |
| Wisconsin Rapids to Tutrakan | 5,186.58 mi (8,347.00 km) |
| Wisconsin Rapids to Varna | 5,272.69 mi (8,485.57 km) |
