| Castelnaudary to Popovo | 1,215.85 mi (1,956.73 km) |
| Castelnaudary to Provadia | 1,277.28 mi (2,055.58 km) |
| Castelnaudary to Radnevo | 1,213.33 mi (1,952.67 km) |
| Castelnaudary to Radomir | 1,060.63 mi (1,706.92 km) |
| Castelnaudary to Rakitovo | 1,125.04 mi (1,810.57 km) |
| Castelnaudary to Rakovski | 1,165.00 mi (1,874.89 km) |
| Castelnaudary to Razgrad | 1,228.15 mi (1,976.52 km) |
| Castelnaudary to Razlog | 1,095.54 mi (1,763.11 km) |
| Castelnaudary to Ruse | 1,197.72 mi (1,927.55 km) |
| Castelnaudary to Samokov | 1,093.66 mi (1,760.07 km) |
| Castelnaudary to Sandanski | 1,091.17 mi (1,756.07 km) |
| Castelnaudary to Sevlievo | 1,163.43 mi (1,872.36 km) |
| Castelnaudary to Shumen | 1,251.34 mi (2,013.83 km) |
| Castelnaudary to Silistra | 1,259.97 mi (2,027.73 km) |
| Castelnaudary to Sliven | 1,228.32 mi (1,976.79 km) |
