| Huercal-Overa to Smolyan | 1,443.54 mi (2,323.15 km) |
| Huercal-Overa to Sofia | 1,380.09 mi (2,221.04 km) |
| Huercal-Overa to Sopot | 1,451.43 mi (2,335.85 km) |
| Huercal-Overa to Sozopol | 1,600.11 mi (2,575.13 km) |
| Huercal-Overa to Sredets | 1,574.41 mi (2,533.76 km) |
| Huercal-Overa to Stamboliyski | 1,437.34 mi (2,313.17 km) |
| Huercal-Overa to Stara Zagora | 1,495.81 mi (2,407.27 km) |
| Huercal-Overa to Svilengrad | 1,521.42 mi (2,448.49 km) |
| Huercal-Overa to Svishtov | 1,489.03 mi (2,396.37 km) |
| Huercal-Overa to Targovishte | 1,547.68 mi (2,490.75 km) |
| Huercal-Overa to Teteven | 1,429.01 mi (2,299.76 km) |
| Huercal-Overa to Troyan | 1,451.38 mi (2,335.78 km) |
| Huercal-Overa to Tryavna | 1,490.73 mi (2,399.10 km) |
| Huercal-Overa to Tutrakan | 1,555.50 mi (2,503.33 km) |
| Huercal-Overa to Varna | 1,614.37 mi (2,598.07 km) |
