| Valongo to Smolyan | 1,710.63 mi (2,752.99 km) |
| Valongo to Sofia | 1,629.52 mi (2,622.46 km) |
| Valongo to Sopot | 1,701.47 mi (2,738.26 km) |
| Valongo to Sozopol | 1,852.35 mi (2,981.07 km) |
| Valongo to Sredets | 1,827.98 mi (2,941.84 km) |
| Valongo to Stamboliyski | 1,695.81 mi (2,729.14 km) |
| Valongo to Stara Zagora | 1,748.99 mi (2,814.72 km) |
| Valongo to Svilengrad | 1,784.50 mi (2,871.88 km) |
| Valongo to Svishtov | 1,723.25 mi (2,773.31 km) |
| Valongo to Targovishte | 1,787.73 mi (2,877.07 km) |
| Valongo to Teteven | 1,674.75 mi (2,695.25 km) |
| Valongo to Troyan | 1,697.63 mi (2,732.08 km) |
| Valongo to Tryavna | 1,737.09 mi (2,795.58 km) |
| Valongo to Tutrakan | 1,782.86 mi (2,869.24 km) |
| Valongo to Varna | 1,854.52 mi (2,984.56 km) |
