| New Silksworth to Smolyan | 1,496.97 mi (2,409.14 km) |
| New Silksworth to Sofia | 1,392.70 mi (2,241.34 km) |
| New Silksworth to Sopot | 1,445.96 mi (2,327.04 km) |
| New Silksworth to Sozopol | 1,565.10 mi (2,518.78 km) |
| New Silksworth to Sredets | 1,549.80 mi (2,494.16 km) |
| New Silksworth to Stamboliyski | 1,463.57 mi (2,355.39 km) |
| New Silksworth to Stara Zagora | 1,489.06 mi (2,396.42 km) |
| New Silksworth to Svilengrad | 1,541.57 mi (2,480.91 km) |
| New Silksworth to Svishtov | 1,421.73 mi (2,288.05 km) |
| New Silksworth to Targovishte | 1,484.46 mi (2,389.00 km) |
| New Silksworth to Teteven | 1,415.57 mi (2,278.15 km) |
| New Silksworth to Troyan | 1,433.44 mi (2,306.90 km) |
| New Silksworth to Tryavna | 1,462.70 mi (2,353.99 km) |
| New Silksworth to Tutrakan | 1,448.90 mi (2,331.78 km) |
| New Silksworth to Varna | 1,535.74 mi (2,471.53 km) |
