| Caldas da Rainha to Popovo | 1,839.80 mi (2,960.87 km) |
| Caldas da Rainha to Provadia | 1,900.86 mi (3,059.13 km) |
| Caldas da Rainha to Radnevo | 1,830.57 mi (2,946.02 km) |
| Caldas da Rainha to Radomir | 1,677.54 mi (2,699.73 km) |
| Caldas da Rainha to Rakitovo | 1,738.32 mi (2,797.56 km) |
| Caldas da Rainha to Rakovski | 1,781.41 mi (2,866.90 km) |
| Caldas da Rainha to Razgrad | 1,853.18 mi (2,982.41 km) |
| Caldas da Rainha to Razlog | 1,707.40 mi (2,747.79 km) |
| Caldas da Rainha to Ruse | 1,824.03 mi (2,935.49 km) |
| Caldas da Rainha to Samokov | 1,709.33 mi (2,750.90 km) |
| Caldas da Rainha to Sandanski | 1,700.03 mi (2,735.93 km) |
| Caldas da Rainha to Sevlievo | 1,784.95 mi (2,872.60 km) |
| Caldas da Rainha to Shumen | 1,875.22 mi (3,017.88 km) |
| Caldas da Rainha to Silistra | 1,887.97 mi (3,038.39 km) |
| Caldas da Rainha to Sliven | 1,848.38 mi (2,974.68 km) |
