| Wabash to Smolyan | 5,278.71 mi (8,495.27 km) |
| Wabash to Sofia | 5,174.81 mi (8,328.06 km) |
| Wabash to Sopot | 5,230.24 mi (8,417.26 km) |
| Wabash to Sozopol | 5,349.73 mi (8,609.56 km) |
| Wabash to Sredets | 5,334.78 mi (8,585.50 km) |
| Wabash to Stamboliyski | 5,246.49 mi (8,443.42 km) |
| Wabash to Stara Zagora | 5,273.86 mi (8,487.46 km) |
| Wabash to Svilengrad | 5,326.08 mi (8,571.49 km) |
| Wabash to Svishtov | 5,206.72 mi (8,379.40 km) |
| Wabash to Targovishte | 5,269.03 mi (8,479.68 km) |
| Wabash to Teteven | 5,199.74 mi (8,368.17 km) |
| Wabash to Troyan | 5,218.02 mi (8,397.58 km) |
| Wabash to Tryavna | 5,247.72 mi (8,445.39 km) |
| Wabash to Tutrakan | 5,231.94 mi (8,419.99 km) |
| Wabash to Varna | 5,318.68 mi (8,559.59 km) |
