| Prestonpans to Smolyan | 1,585.83 mi (2,552.15 km) |
| Prestonpans to Sofia | 1,481.53 mi (2,384.30 km) |
| Prestonpans to Sopot | 1,533.38 mi (2,467.73 km) |
| Prestonpans to Sozopol | 1,649.70 mi (2,654.94 km) |
| Prestonpans to Sredets | 1,635.04 mi (2,631.34 km) |
| Prestonpans to Stamboliyski | 1,551.91 mi (2,497.56 km) |
| Prestonpans to Stara Zagora | 1,575.84 mi (2,536.07 km) |
| Prestonpans to Svilengrad | 1,628.68 mi (2,621.11 km) |
| Prestonpans to Svishtov | 1,507.04 mi (2,425.34 km) |
| Prestonpans to Targovishte | 1,568.98 mi (2,525.04 km) |
| Prestonpans to Teteven | 1,503.13 mi (2,419.05 km) |
| Prestonpans to Troyan | 1,520.57 mi (2,447.12 km) |
| Prestonpans to Tryavna | 1,549.01 mi (2,492.89 km) |
| Prestonpans to Tutrakan | 1,532.04 mi (2,465.58 km) |
| Prestonpans to Varna | 1,618.83 mi (2,605.26 km) |
