| Halen to Olivenza | 1,034.48 mi (1,664.83 km) |
| Halen to Olot | 618.26 mi (995.00 km) |
| Halen to Onate | 651.19 mi (1,047.99 km) |
| Halen to Onda | 802.00 mi (1,290.69 km) |
| Halen to Onteniente | 882.72 mi (1,420.60 km) |
| Halen to Orihuela | 936.74 mi (1,507.53 km) |
| Halen to Osuna | 1,072.32 mi (1,725.73 km) |
| Halen to Ourense | 853.84 mi (1,374.12 km) |
| Halen to Oviedo | 733.39 mi (1,180.27 km) |
| Halen to Paiporta | 839.73 mi (1,351.41 km) |
| Halen to Pajara | 1,853.89 mi (2,983.55 km) |
| Halen to Palafolls | 650.87 mi (1,047.47 km) |
| Halen to Palafrugell | 630.78 mi (1,015.14 km) |
| Halen to Palamos | 635.92 mi (1,023.41 km) |
| Halen to Palencia | 767.71 mi (1,235.51 km) |
