| Holywell to Smolyan | 1,520.08 mi (2,446.34 km) |
| Holywell to Sofia | 1,416.51 mi (2,279.65 km) |
| Holywell to Sopot | 1,474.06 mi (2,372.28 km) |
| Holywell to Sozopol | 1,600.82 mi (2,576.28 km) |
| Holywell to Sredets | 1,583.83 mi (2,548.92 km) |
| Holywell to Stamboliyski | 1,488.61 mi (2,395.69 km) |
| Holywell to Stara Zagora | 1,518.93 mi (2,444.48 km) |
| Holywell to Svilengrad | 1,570.14 mi (2,526.89 km) |
| Holywell to Svishtov | 1,456.24 mi (2,343.58 km) |
| Holywell to Targovishte | 1,520.78 mi (2,447.45 km) |
| Holywell to Teteven | 1,443.43 mi (2,322.98 km) |
| Holywell to Troyan | 1,462.54 mi (2,353.73 km) |
| Holywell to Tryavna | 1,494.11 mi (2,404.53 km) |
| Holywell to Tutrakan | 1,489.07 mi (2,396.42 km) |
| Holywell to Varna | 1,575.57 mi (2,535.64 km) |
