| Santo Tirso to Smolyan | 1,706.80 mi (2,746.83 km) |
| Santo Tirso to Sofia | 1,625.30 mi (2,615.67 km) |
| Santo Tirso to Sopot | 1,697.22 mi (2,731.41 km) |
| Santo Tirso to Sozopol | 1,848.05 mi (2,974.15 km) |
| Santo Tirso to Sredets | 1,823.73 mi (2,935.00 km) |
| Santo Tirso to Stamboliyski | 1,691.77 mi (2,722.64 km) |
| Santo Tirso to Stara Zagora | 1,744.78 mi (2,807.95 km) |
| Santo Tirso to Svilengrad | 1,780.52 mi (2,865.48 km) |
| Santo Tirso to Svishtov | 1,718.60 mi (2,765.81 km) |
| Santo Tirso to Targovishte | 1,783.17 mi (2,869.73 km) |
| Santo Tirso to Teteven | 1,670.41 mi (2,688.26 km) |
| Santo Tirso to Troyan | 1,693.29 mi (2,725.08 km) |
| Santo Tirso to Tryavna | 1,732.72 mi (2,788.54 km) |
| Santo Tirso to Tutrakan | 1,778.00 mi (2,861.42 km) |
| Santo Tirso to Varna | 1,849.92 mi (2,977.16 km) |
