| Idrija to Reinosa | 916.67 mi (1,475.24 km) |
| Idrija to Requena | 887.81 mi (1,428.78 km) |
| Idrija to Reus | 727.01 mi (1,170.00 km) |
| Idrija to Rianxo | 1,148.43 mi (1,848.22 km) |
| Idrija to Ribadeo | 1,044.26 mi (1,680.57 km) |
| Idrija to Rincon de la Victoria | 1,141.68 mi (1,837.35 km) |
| Idrija to Ripoll | 642.53 mi (1,034.06 km) |
| Idrija to Ripollet | 668.30 mi (1,075.52 km) |
| Idrija to Rojales | 931.28 mi (1,498.75 km) |
| Idrija to Ronda | 1,178.51 mi (1,896.63 km) |
| Idrija to Roquetas de Mar | 1,069.62 mi (1,721.39 km) |
| Idrija to Rosas | 596.29 mi (959.64 km) |
| Idrija to Rubi | 673.93 mi (1,084.59 km) |
| Idrija to Rute | 1,119.13 mi (1,801.07 km) |
| Idrija to Sabadell | 668.64 mi (1,076.07 km) |
