| Altadena to Olivares | 5,839.66 mi (9,398.02 km) |
| Altadena to Olivenza | 5,744.10 mi (9,244.23 km) |
| Altadena to Olot | 5,960.35 mi (9,592.25 km) |
| Altadena to Onate | 5,737.65 mi (9,233.85 km) |
| Altadena to Onda | 5,962.57 mi (9,595.83 km) |
| Altadena to Onteniente | 6,002.66 mi (9,660.35 km) |
| Altadena to Orihuela | 6,023.61 mi (9,694.07 km) |
| Altadena to Osuna | 5,892.04 mi (9,482.33 km) |
| Altadena to Ourense | 5,555.61 mi (8,940.90 km) |
| Altadena to Oviedo | 5,591.30 mi (8,998.34 km) |
| Altadena to Paiporta | 5,981.68 mi (9,626.58 km) |
| Altadena to Pajara | 5,860.33 mi (9,431.29 km) |
| Altadena to Palafolls | 5,994.81 mi (9,647.71 km) |
| Altadena to Palafrugell | 5,997.80 mi (9,652.52 km) |
| Altadena to Palamos | 6,000.04 mi (9,656.14 km) |
