| Erkrath to Olivenza | 1,100.65 mi (1,771.32 km) |
| Erkrath to Olot | 658.66 mi (1,060.02 km) |
| Erkrath to Onate | 714.83 mi (1,150.40 km) |
| Erkrath to Onda | 851.00 mi (1,369.54 km) |
| Erkrath to Onteniente | 931.11 mi (1,498.47 km) |
| Erkrath to Orihuela | 985.22 mi (1,585.55 km) |
| Erkrath to Osuna | 1,131.75 mi (1,821.37 km) |
| Erkrath to Ourense | 927.49 mi (1,492.65 km) |
| Erkrath to Oviedo | 805.88 mi (1,296.94 km) |
| Erkrath to Paiporta | 888.40 mi (1,429.74 km) |
| Erkrath to Pajara | 1,919.75 mi (3,089.54 km) |
| Erkrath to Palafolls | 689.00 mi (1,108.83 km) |
| Erkrath to Palafrugell | 667.02 mi (1,073.46 km) |
| Erkrath to Palamos | 672.25 mi (1,081.88 km) |
| Erkrath to Palencia | 834.59 mi (1,343.15 km) |
