| Horsforth to Smolyan | 1,475.05 mi (2,373.87 km) |
| Horsforth to Sofia | 1,371.05 mi (2,206.49 km) |
| Horsforth to Sopot | 1,426.68 mi (2,296.02 km) |
| Horsforth to Sozopol | 1,550.14 mi (2,494.71 km) |
| Horsforth to Sredets | 1,533.88 mi (2,468.54 km) |
| Horsforth to Stamboliyski | 1,442.66 mi (2,321.73 km) |
| Horsforth to Stara Zagora | 1,470.79 mi (2,367.01 km) |
| Horsforth to Svilengrad | 1,522.64 mi (2,450.45 km) |
| Horsforth to Svishtov | 1,405.95 mi (2,262.67 km) |
| Horsforth to Targovishte | 1,469.76 mi (2,365.35 km) |
| Horsforth to Teteven | 1,396.13 mi (2,246.86 km) |
| Horsforth to Troyan | 1,414.69 mi (2,276.73 km) |
| Horsforth to Tryavna | 1,445.25 mi (2,325.90 km) |
| Horsforth to Tutrakan | 1,436.35 mi (2,311.58 km) |
| Horsforth to Varna | 1,523.07 mi (2,451.15 km) |
