| Niederkassel to Reinosa | 753.13 mi (1,212.04 km) |
| Niederkassel to Requena | 876.25 mi (1,410.18 km) |
| Niederkassel to Reus | 725.05 mi (1,166.86 km) |
| Niederkassel to Rianxo | 935.78 mi (1,506.00 km) |
| Niederkassel to Ribadeo | 828.44 mi (1,333.24 km) |
| Niederkassel to Rincon de la Victoria | 1,123.11 mi (1,807.47 km) |
| Niederkassel to Ripoll | 637.92 mi (1,026.64 km) |
| Niederkassel to Ripollet | 684.53 mi (1,101.65 km) |
| Niederkassel to Rojales | 957.76 mi (1,541.36 km) |
| Niederkassel to Ronda | 1,144.10 mi (1,841.25 km) |
| Niederkassel to Roquetas de Mar | 1,081.50 mi (1,740.50 km) |
| Niederkassel to Rosas | 618.55 mi (995.46 km) |
| Niederkassel to Rubi | 686.81 mi (1,105.31 km) |
| Niederkassel to Rute | 1,088.20 mi (1,751.28 km) |
| Niederkassel to Sabadell | 681.97 mi (1,097.53 km) |
