| Wiltz to Smolyan | 1,069.38 mi (1,721.01 km) |
| Wiltz to Sofia | 966.50 mi (1,555.44 km) |
| Wiltz to Sopot | 1,026.46 mi (1,651.93 km) |
| Wiltz to Sozopol | 1,158.66 mi (1,864.69 km) |
| Wiltz to Sredets | 1,140.25 mi (1,835.05 km) |
| Wiltz to Stamboliyski | 1,039.03 mi (1,672.16 km) |
| Wiltz to Stara Zagora | 1,072.36 mi (1,725.79 km) |
| Wiltz to Svilengrad | 1,122.42 mi (1,806.36 km) |
| Wiltz to Svishtov | 1,013.93 mi (1,631.76 km) |
| Wiltz to Targovishte | 1,079.72 mi (1,737.64 km) |
| Wiltz to Teteven | 995.80 mi (1,602.59 km) |
| Wiltz to Troyan | 1,015.69 mi (1,634.60 km) |
| Wiltz to Tryavna | 1,048.85 mi (1,687.96 km) |
| Wiltz to Tutrakan | 1,052.35 mi (1,693.60 km) |
| Wiltz to Varna | 1,137.73 mi (1,831.00 km) |
