| Valka to Smolyan | 1,119.62 mi (1,801.86 km) |
| Valka to Sofia | 1,047.47 mi (1,685.74 km) |
| Valka to Sopot | 1,045.88 mi (1,683.18 km) |
| Valka to Sozopol | 1,063.17 mi (1,711.01 km) |
| Valka to Sredets | 1,066.48 mi (1,716.33 km) |
| Valka to Stamboliyski | 1,082.07 mi (1,741.42 km) |
| Valka to Stara Zagora | 1,059.55 mi (1,705.17 km) |
| Valka to Svilengrad | 1,105.53 mi (1,779.17 km) |
| Valka to Svishtov | 978.07 mi (1,574.06 km) |
| Valka to Targovishte | 1,003.32 mi (1,614.69 km) |
| Valka to Teteven | 1,028.79 mi (1,655.68 km) |
| Valka to Troyan | 1,029.85 mi (1,657.39 km) |
| Valka to Tryavna | 1,029.71 mi (1,657.15 km) |
| Valka to Tutrakan | 948.10 mi (1,525.82 km) |
| Valka to Varna | 1,008.73 mi (1,623.39 km) |
