| San Diego to Olivares | 5,859.39 mi (9,429.78 km) |
| San Diego to Olivenza | 5,764.84 mi (9,277.62 km) |
| San Diego to Olot | 5,995.00 mi (9,648.02 km) |
| San Diego to Onate | 5,768.99 mi (9,284.29 km) |
| San Diego to Onda | 5,991.60 mi (9,642.54 km) |
| San Diego to Onteniente | 6,029.77 mi (9,703.97 km) |
| San Diego to Orihuela | 6,049.36 mi (9,735.50 km) |
| San Diego to Osuna | 5,912.51 mi (9,515.27 km) |
| San Diego to Ourense | 5,581.19 mi (8,982.05 km) |
| San Diego to Oviedo | 5,620.13 mi (9,044.73 km) |
| San Diego to Paiporta | 6,009.81 mi (9,671.86 km) |
| San Diego to Pajara | 5,858.35 mi (9,428.11 km) |
| San Diego to Palafolls | 6,029.03 mi (9,702.79 km) |
| San Diego to Palafrugell | 6,032.74 mi (9,708.76 km) |
| San Diego to Palamos | 6,034.86 mi (9,712.17 km) |
