| Westerlo to Olivenza | 1,036.26 mi (1,667.70 km) |
| Westerlo to Olot | 625.61 mi (1,006.81 km) |
| Westerlo to Onate | 653.87 mi (1,052.30 km) |
| Westerlo to Onda | 807.75 mi (1,299.94 km) |
| Westerlo to Onteniente | 888.53 mi (1,429.96 km) |
| Westerlo to Orihuela | 942.51 mi (1,516.82 km) |
| Westerlo to Osuna | 1,075.80 mi (1,731.33 km) |
| Westerlo to Ourense | 853.18 mi (1,373.06 km) |
| Westerlo to Oviedo | 733.24 mi (1,180.03 km) |
| Westerlo to Paiporta | 845.52 mi (1,360.73 km) |
| Westerlo to Pajara | 1,855.60 mi (2,986.30 km) |
| Westerlo to Palafolls | 658.52 mi (1,059.78 km) |
| Westerlo to Palafrugell | 638.72 mi (1,027.92 km) |
| Westerlo to Palamos | 643.84 mi (1,036.16 km) |
| Westerlo to Palencia | 769.41 mi (1,238.24 km) |
