| Isla-Cristina to Smolyan | 1,726.26 mi (2,778.14 km) |
| Isla-Cristina to Sofia | 1,657.64 mi (2,667.71 km) |
| Isla-Cristina to Sopot | 1,729.57 mi (2,783.48 km) |
| Isla-Cristina to Sozopol | 1,879.63 mi (3,024.97 km) |
| Isla-Cristina to Sredets | 1,854.17 mi (2,984.00 km) |
| Isla-Cristina to Stamboliyski | 1,717.75 mi (2,764.45 km) |
| Isla-Cristina to Stara Zagora | 1,775.08 mi (2,856.71 km) |
| Isla-Cristina to Svilengrad | 1,803.48 mi (2,902.42 km) |
| Isla-Cristina to Svishtov | 1,762.73 mi (2,836.83 km) |
| Isla-Cristina to Targovishte | 1,823.46 mi (2,934.57 km) |
| Isla-Cristina to Teteven | 1,705.78 mi (2,745.19 km) |
| Isla-Cristina to Troyan | 1,728.44 mi (2,781.65 km) |
| Isla-Cristina to Tryavna | 1,768.04 mi (2,845.39 km) |
| Isla-Cristina to Tutrakan | 1,827.46 mi (2,941.01 km) |
| Isla-Cristina to Varna | 1,890.52 mi (3,042.50 km) |
