| Castelginest to Popovo | 1,238.10 mi (1,992.52 km) |
| Castelginest to Provadia | 1,299.55 mi (2,091.43 km) |
| Castelginest to Radnevo | 1,237.33 mi (1,991.29 km) |
| Castelginest to Radomir | 1,084.96 mi (1,746.07 km) |
| Castelginest to Rakitovo | 1,150.03 mi (1,850.79 km) |
| Castelginest to Rakovski | 1,189.26 mi (1,913.94 km) |
| Castelginest to Razgrad | 1,250.04 mi (2,011.74 km) |
| Castelginest to Razlog | 1,120.87 mi (1,803.87 km) |
| Castelginest to Ruse | 1,219.22 mi (1,962.14 km) |
| Castelginest to Samokov | 1,118.20 mi (1,799.57 km) |
| Castelginest to Sandanski | 1,117.06 mi (1,797.74 km) |
| Castelginest to Sevlievo | 1,186.44 mi (1,909.39 km) |
| Castelginest to Shumen | 1,273.55 mi (2,049.59 km) |
| Castelginest to Silistra | 1,280.77 mi (2,061.19 km) |
| Castelginest to Sliven | 1,251.62 mi (2,014.29 km) |
