| San Francisco to Olivares | 5,846.27 mi (9,408.67 km) |
| San Francisco to Olivenza | 5,748.01 mi (9,250.53 km) |
| San Francisco to Olot | 5,918.56 mi (9,525.01 km) |
| San Francisco to Onate | 5,707.72 mi (9,185.69 km) |
| San Francisco to Onda | 5,938.98 mi (9,557.87 km) |
| San Francisco to Onteniente | 5,985.02 mi (9,631.96 km) |
| San Francisco to Orihuela | 6,010.24 mi (9,672.54 km) |
| San Francisco to Osuna | 5,896.08 mi (9,488.83 km) |
| San Francisco to Ourense | 5,545.12 mi (8,924.02 km) |
| San Francisco to Oviedo | 5,570.20 mi (8,964.37 km) |
| San Francisco to Paiporta | 5,960.85 mi (9,593.07 km) |
| San Francisco to Pajara | 5,934.08 mi (9,549.97 km) |
| San Francisco to Palafolls | 5,954.26 mi (9,582.46 km) |
| San Francisco to Palafrugell | 5,954.89 mi (9,583.47 km) |
| San Francisco to Palamos | 5,957.54 mi (9,587.74 km) |
