| Saint Helens to Smolyan | 1,506.32 mi (2,424.20 km) |
| Saint Helens to Sofia | 1,402.60 mi (2,257.27 km) |
| Saint Helens to Sopot | 1,459.59 mi (2,348.99 km) |
| Saint Helens to Sozopol | 1,585.38 mi (2,551.43 km) |
| Saint Helens to Sredets | 1,568.60 mi (2,524.43 km) |
| Saint Helens to Stamboliyski | 1,474.57 mi (2,373.09 km) |
| Saint Helens to Stara Zagora | 1,504.24 mi (2,420.84 km) |
| Saint Helens to Svilengrad | 1,555.65 mi (2,503.57 km) |
| Saint Helens to Svishtov | 1,440.89 mi (2,318.89 km) |
| Saint Helens to Targovishte | 1,505.22 mi (2,422.42 km) |
| Saint Helens to Teteven | 1,428.98 mi (2,299.72 km) |
| Saint Helens to Troyan | 1,447.93 mi (2,330.21 km) |
| Saint Helens to Tryavna | 1,479.20 mi (2,380.53 km) |
| Saint Helens to Tutrakan | 1,473.00 mi (2,370.56 km) |
| Saint Helens to Varna | 1,559.58 mi (2,509.90 km) |
