| South San Francisco to Opwijk | 5,513.07 mi (8,872.43 km) |
| South San Francisco to Ostend | 5,463.75 mi (8,793.05 km) |
| South San Francisco to Oud-Heverlee | 5,533.68 mi (8,905.60 km) |
| South San Francisco to Oud-Turnhout | 5,516.81 mi (8,878.45 km) |
| South San Francisco to Oudenaarde | 5,502.73 mi (8,855.79 km) |
| South San Francisco to Oudenburg | 5,468.25 mi (8,800.30 km) |
| South San Francisco to Oupeye | 5,567.50 mi (8,960.02 km) |
| South San Francisco to Overijse | 5,532.59 mi (8,903.85 km) |
| South San Francisco to Overpelt | 5,534.07 mi (8,906.23 km) |
| South San Francisco to Paal | 5,536.82 mi (8,910.64 km) |
| South San Francisco to Peer | 5,539.57 mi (8,915.07 km) |
| South San Francisco to Pepinster | 5,579.89 mi (8,979.96 km) |
| South San Francisco to Peruwelz | 5,519.74 mi (8,883.16 km) |
| South San Francisco to Perwez | 5,548.94 mi (8,930.15 km) |
| South San Francisco to Philippeville | 5,563.97 mi (8,954.34 km) |
