| Potters Bar to Smolyan | 1,361.72 mi (2,191.48 km) |
| Potters Bar to Sofia | 1,258.75 mi (2,025.77 km) |
| Potters Bar to Sopot | 1,318.21 mi (2,121.46 km) |
| Potters Bar to Sozopol | 1,448.69 mi (2,331.44 km) |
| Potters Bar to Sredets | 1,430.78 mi (2,302.62 km) |
| Potters Bar to Stamboliyski | 1,331.23 mi (2,142.40 km) |
| Potters Bar to Stara Zagora | 1,363.84 mi (2,194.88 km) |
| Potters Bar to Svilengrad | 1,414.23 mi (2,275.99 km) |
| Potters Bar to Svishtov | 1,303.90 mi (2,098.42 km) |
| Potters Bar to Targovishte | 1,369.26 mi (2,203.61 km) |
| Potters Bar to Teteven | 1,287.55 mi (2,072.11 km) |
| Potters Bar to Troyan | 1,307.23 mi (2,103.78 km) |
| Potters Bar to Tryavna | 1,339.90 mi (2,156.37 km) |
| Potters Bar to Tutrakan | 1,340.02 mi (2,156.56 km) |
| Potters Bar to Varna | 1,425.99 mi (2,294.91 km) |
