| Cave Spring to Smolyan | 5,216.86 mi (8,395.73 km) |
| Cave Spring to Sofia | 5,114.45 mi (8,230.91 km) |
| Cave Spring to Sopot | 5,174.34 mi (8,327.30 km) |
| Cave Spring to Sozopol | 5,302.69 mi (8,533.85 km) |
| Cave Spring to Sredets | 5,285.64 mi (8,506.42 km) |
| Cave Spring to Stamboliyski | 5,187.06 mi (8,347.76 km) |
| Cave Spring to Stara Zagora | 5,219.84 mi (8,400.52 km) |
| Cave Spring to Svilengrad | 5,270.37 mi (8,481.85 km) |
| Cave Spring to Svishtov | 5,158.10 mi (8,301.16 km) |
| Cave Spring to Targovishte | 5,222.58 mi (8,404.93 km) |
| Cave Spring to Teteven | 5,143.68 mi (8,277.96 km) |
| Cave Spring to Troyan | 5,163.28 mi (8,309.50 km) |
| Cave Spring to Tryavna | 5,195.54 mi (8,361.41 km) |
| Cave Spring to Tutrakan | 5,189.92 mi (8,352.36 km) |
| Cave Spring to Varna | 5,276.62 mi (8,491.90 km) |
