| Wausau to Smolyan | 5,214.76 mi (8,392.34 km) |
| Wausau to Sofia | 5,110.46 mi (8,224.49 km) |
| Wausau to Sopot | 5,161.56 mi (8,306.72 km) |
| Wausau to Sozopol | 5,272.46 mi (8,485.20 km) |
| Wausau to Sredets | 5,259.42 mi (8,464.21 km) |
| Wausau to Stamboliyski | 5,180.73 mi (8,337.58 km) |
| Wausau to Stara Zagora | 5,203.20 mi (8,373.74 km) |
| Wausau to Svilengrad | 5,256.42 mi (8,459.39 km) |
| Wausau to Svishtov | 5,131.98 mi (8,259.13 km) |
| Wausau to Targovishte | 5,191.92 mi (8,355.58 km) |
| Wausau to Teteven | 5,131.46 mi (8,258.28 km) |
| Wausau to Troyan | 5,148.44 mi (8,285.61 km) |
| Wausau to Tryavna | 5,175.70 mi (8,329.49 km) |
| Wausau to Tutrakan | 5,151.37 mi (8,290.32 km) |
| Wausau to Varna | 5,237.42 mi (8,428.81 km) |
