| Caldas de Reyes to Popovo | 1,750.64 mi (2,817.39 km) |
| Caldas de Reyes to Provadia | 1,812.11 mi (2,916.30 km) |
| Caldas de Reyes to Radnevo | 1,750.20 mi (2,816.67 km) |
| Caldas de Reyes to Radomir | 1,597.72 mi (2,571.28 km) |
| Caldas de Reyes to Rakitovo | 1,662.44 mi (2,675.44 km) |
| Caldas de Reyes to Rakovski | 1,702.05 mi (2,739.19 km) |
| Caldas de Reyes to Razgrad | 1,762.36 mi (2,836.24 km) |
| Caldas de Reyes to Razlog | 1,633.02 mi (2,628.09 km) |
| Caldas de Reyes to Ruse | 1,731.24 mi (2,786.17 km) |
| Caldas de Reyes to Samokov | 1,630.87 mi (2,624.63 km) |
| Caldas de Reyes to Sandanski | 1,628.64 mi (2,621.04 km) |
| Caldas de Reyes to Sevlievo | 1,699.29 mi (2,734.75 km) |
| Caldas de Reyes to Shumen | 1,786.08 mi (2,874.41 km) |
| Caldas de Reyes to Silistra | 1,792.07 mi (2,884.05 km) |
| Caldas de Reyes to Sliven | 1,764.52 mi (2,839.72 km) |
