| Willenhall to Olivares | 1,066.11 mi (1,715.74 km) |
| Willenhall to Olivenza | 989.77 mi (1,592.88 km) |
| Willenhall to Olot | 748.89 mi (1,205.21 km) |
| Willenhall to Onate | 659.80 mi (1,061.85 km) |
| Willenhall to Onda | 875.91 mi (1,409.64 km) |
| Willenhall to Onteniente | 953.09 mi (1,533.85 km) |
| Willenhall to Orihuela | 1,002.88 mi (1,613.98 km) |
| Willenhall to Osuna | 1,070.47 mi (1,722.76 km) |
| Willenhall to Ourense | 757.28 mi (1,218.72 km) |
| Willenhall to Oviedo | 660.40 mi (1,062.82 km) |
| Willenhall to Paiporta | 912.06 mi (1,467.82 km) |
| Willenhall to Pajara | 1,784.20 mi (2,871.39 km) |
| Willenhall to Palafolls | 786.60 mi (1,265.91 km) |
| Willenhall to Palafrugell | 775.85 mi (1,248.61 km) |
| Willenhall to Palamos | 780.10 mi (1,255.45 km) |
