| Horten to Olivenza | 1,626.49 mi (2,617.58 km) |
| Horten to Olot | 1,238.48 mi (1,993.14 km) |
| Horten to Onate | 1,256.34 mi (2,021.89 km) |
| Horten to Onda | 1,422.77 mi (2,289.73 km) |
| Horten to Onteniente | 1,503.59 mi (2,419.80 km) |
| Horten to Orihuela | 1,557.53 mi (2,506.60 km) |
| Horten to Osuna | 1,681.31 mi (2,705.80 km) |
| Horten to Ourense | 1,414.26 mi (2,276.03 km) |
| Horten to Oviedo | 1,305.17 mi (2,100.47 km) |
| Horten to Paiporta | 1,460.56 mi (2,350.55 km) |
| Horten to Pajara | 2,439.17 mi (3,925.46 km) |
| Horten to Palafolls | 1,270.06 mi (2,043.96 km) |
| Horten to Palafrugell | 1,248.80 mi (2,009.75 km) |
| Horten to Palamos | 1,254.00 mi (2,018.12 km) |
| Horten to Palencia | 1,361.99 mi (2,191.91 km) |
