| Harsewinkel to Olivenza | 1,176.89 mi (1,894.01 km) |
| Harsewinkel to Olot | 727.51 mi (1,170.81 km) |
| Harsewinkel to Onate | 790.84 mi (1,272.74 km) |
| Harsewinkel to Onda | 922.89 mi (1,485.25 km) |
| Harsewinkel to Onteniente | 1,002.65 mi (1,613.61 km) |
| Harsewinkel to Orihuela | 1,056.72 mi (1,700.63 km) |
| Harsewinkel to Osuna | 1,206.75 mi (1,942.08 km) |
| Harsewinkel to Ourense | 1,003.35 mi (1,614.73 km) |
| Harsewinkel to Oviedo | 881.97 mi (1,419.40 km) |
| Harsewinkel to Paiporta | 960.11 mi (1,545.15 km) |
| Harsewinkel to Pajara | 1,995.90 mi (3,212.09 km) |
| Harsewinkel to Palafolls | 756.69 mi (1,217.78 km) |
| Harsewinkel to Palafrugell | 733.92 mi (1,181.13 km) |
| Harsewinkel to Palamos | 739.16 mi (1,189.57 km) |
| Harsewinkel to Palencia | 910.92 mi (1,465.98 km) |
