| Weil am Rhein to Smolyan | 935.13 mi (1,504.95 km) |
| Weil am Rhein to Sofia | 835.37 mi (1,344.40 km) |
| Weil am Rhein to Sopot | 900.29 mi (1,448.88 km) |
| Weil am Rhein to Sozopol | 1,040.93 mi (1,675.22 km) |
| Weil am Rhein to Sredets | 1,020.35 mi (1,642.10 km) |
| Weil am Rhein to Stamboliyski | 908.09 mi (1,461.43 km) |
| Weil am Rhein to Stara Zagora | 947.74 mi (1,525.25 km) |
| Weil am Rhein to Svilengrad | 994.84 mi (1,601.04 km) |
| Weil am Rhein to Svishtov | 898.09 mi (1,445.33 km) |
| Weil am Rhein to Targovishte | 964.91 mi (1,552.87 km) |
| Weil am Rhein to Teteven | 870.02 mi (1,400.16 km) |
| Weil am Rhein to Troyan | 891.29 mi (1,434.40 km) |
| Weil am Rhein to Tryavna | 927.13 mi (1,492.08 km) |
| Weil am Rhein to Tutrakan | 944.66 mi (1,520.28 km) |
| Weil am Rhein to Varna | 1,026.97 mi (1,652.75 km) |
