| Castleton to Redondela | 835.41 mi (1,344.47 km) |
| Castleton to Reinosa | 737.09 mi (1,186.23 km) |
| Castleton to Requena | 975.84 mi (1,570.45 km) |
| Castleton to Reus | 872.61 mi (1,404.32 km) |
| Castleton to Rianxo | 814.80 mi (1,311.30 km) |
| Castleton to Ribadeo | 729.21 mi (1,173.54 km) |
| Castleton to Rincon de la Victoria | 1,170.27 mi (1,883.37 km) |
| Castleton to Ripoll | 812.10 mi (1,306.95 km) |
| Castleton to Ripollet | 859.26 mi (1,382.84 km) |
| Castleton to Rojales | 1,073.31 mi (1,727.32 km) |
| Castleton to Ronda | 1,173.28 mi (1,888.21 km) |
| Castleton to Roquetas de Mar | 1,162.79 mi (1,871.33 km) |
| Castleton to Rosas | 820.30 mi (1,320.15 km) |
| Castleton to Rubi | 858.18 mi (1,381.10 km) |
| Castleton to Rute | 1,129.30 mi (1,817.43 km) |
