| San Diego to Opwijk | 5,637.61 mi (9,072.86 km) |
| San Diego to Ostend | 5,585.30 mi (8,988.67 km) |
| San Diego to Oud-Heverlee | 5,659.22 mi (9,107.63 km) |
| San Diego to Oud-Turnhout | 5,645.95 mi (9,086.28 km) |
| San Diego to Oudenaarde | 5,624.64 mi (9,051.98 km) |
| San Diego to Oudenburg | 5,589.85 mi (8,996.00 km) |
| San Diego to Oupeye | 5,695.83 mi (9,166.56 km) |
| San Diego to Overijse | 5,657.40 mi (9,104.71 km) |
| San Diego to Overpelt | 5,664.21 mi (9,115.66 km) |
| San Diego to Paal | 5,665.19 mi (9,117.24 km) |
| San Diego to Peer | 5,669.40 mi (9,124.02 km) |
| San Diego to Pepinster | 5,708.12 mi (9,186.33 km) |
| San Diego to Peruwelz | 5,639.83 mi (9,076.43 km) |
| San Diego to Perwez | 5,673.91 mi (9,131.28 km) |
| San Diego to Philippeville | 5,685.82 mi (9,150.44 km) |
