| Bad Oeynhausen to Olivenza | 1,205.32 mi (1,939.77 km) |
| Bad Oeynhausen to Olot | 752.22 mi (1,210.59 km) |
| Bad Oeynhausen to Onate | 819.09 mi (1,318.19 km) |
| Bad Oeynhausen to Onda | 948.88 mi (1,527.07 km) |
| Bad Oeynhausen to Onteniente | 1,028.45 mi (1,655.12 km) |
| Bad Oeynhausen to Orihuela | 1,082.49 mi (1,742.10 km) |
| Bad Oeynhausen to Osuna | 1,234.30 mi (1,986.41 km) |
| Bad Oeynhausen to Ourense | 1,032.31 mi (1,661.34 km) |
| Bad Oeynhausen to Oviedo | 910.91 mi (1,465.97 km) |
| Bad Oeynhausen to Paiporta | 986.00 mi (1,586.81 km) |
| Bad Oeynhausen to Pajara | 2,024.23 mi (3,257.68 km) |
| Bad Oeynhausen to Palafolls | 780.90 mi (1,256.74 km) |
| Bad Oeynhausen to Palafrugell | 757.81 mi (1,219.58 km) |
| Bad Oeynhausen to Palamos | 763.06 mi (1,228.02 km) |
| Bad Oeynhausen to Palencia | 939.47 mi (1,511.93 km) |
