| Castelvetrano to Popovo | 805.86 mi (1,296.91 km) |
| Castelvetrano to Provadia | 856.98 mi (1,379.18 km) |
| Castelvetrano to Radnevo | 764.12 mi (1,229.74 km) |
| Castelvetrano to Radomir | 632.64 mi (1,018.13 km) |
| Castelvetrano to Rakitovo | 667.91 mi (1,074.90 km) |
| Castelvetrano to Rakovski | 717.74 mi (1,155.09 km) |
| Castelvetrano to Razgrad | 824.06 mi (1,326.20 km) |
| Castelvetrano to Razlog | 636.06 mi (1,023.63 km) |
| Castelvetrano to Ruse | 807.53 mi (1,299.59 km) |
| Castelvetrano to Samokov | 653.32 mi (1,051.42 km) |
| Castelvetrano to Sandanski | 618.81 mi (995.88 km) |
| Castelvetrano to Sevlievo | 745.25 mi (1,199.37 km) |
| Castelvetrano to Shumen | 836.25 mi (1,345.82 km) |
| Castelvetrano to Silistra | 874.77 mi (1,407.81 km) |
| Castelvetrano to Sliven | 792.58 mi (1,275.53 km) |
