| Northenden to Smolyan | 1,486.46 mi (2,392.23 km) |
| Northenden to Sofia | 1,382.70 mi (2,225.25 km) |
| Northenden to Sopot | 1,439.55 mi (2,316.74 km) |
| Northenden to Sozopol | 1,565.14 mi (2,518.86 km) |
| Northenden to Sredets | 1,548.41 mi (2,491.92 km) |
| Northenden to Stamboliyski | 1,454.64 mi (2,341.01 km) |
| Northenden to Stara Zagora | 1,484.15 mi (2,388.51 km) |
| Northenden to Svilengrad | 1,535.60 mi (2,471.31 km) |
| Northenden to Svishtov | 1,420.67 mi (2,286.35 km) |
| Northenden to Targovishte | 1,484.97 mi (2,389.82 km) |
| Northenden to Teteven | 1,408.95 mi (2,267.48 km) |
| Northenden to Troyan | 1,427.86 mi (2,297.91 km) |
| Northenden to Tryavna | 1,459.06 mi (2,348.13 km) |
| Northenden to Tutrakan | 1,452.66 mi (2,337.84 km) |
| Northenden to Varna | 1,539.26 mi (2,477.19 km) |
