| Herselt to Olivenza | 1,033.56 mi (1,663.35 km) |
| Herselt to Olot | 623.06 mi (1,002.72 km) |
| Herselt to Onate | 651.15 mi (1,047.93 km) |
| Herselt to Onda | 805.09 mi (1,295.67 km) |
| Herselt to Onteniente | 885.88 mi (1,425.68 km) |
| Herselt to Orihuela | 939.85 mi (1,512.54 km) |
| Herselt to Osuna | 1,073.08 mi (1,726.96 km) |
| Herselt to Ourense | 850.59 mi (1,368.89 km) |
| Herselt to Oviedo | 730.62 mi (1,175.81 km) |
| Herselt to Paiporta | 842.86 mi (1,356.45 km) |
| Herselt to Pajara | 1,852.90 mi (2,981.96 km) |
| Herselt to Palafolls | 656.00 mi (1,055.74 km) |
| Herselt to Palafrugell | 636.24 mi (1,023.93 km) |
| Herselt to Palamos | 641.36 mi (1,032.17 km) |
| Herselt to Palencia | 766.71 mi (1,233.90 km) |
