| San Francisco to Oerlinghausen | 5,574.31 mi (8,970.99 km) |
| San Francisco to Oestrich-Winkel | 5,664.88 mi (9,116.75 km) |
| San Francisco to Offenburg | 5,747.24 mi (9,249.29 km) |
| San Francisco to Oftersheim | 5,715.32 mi (9,197.92 km) |
| San Francisco to Ohrdruf | 5,690.46 mi (9,157.90 km) |
| San Francisco to Ohringen | 5,749.40 mi (9,252.76 km) |
| San Francisco to Olbernhau | 5,764.26 mi (9,276.67 km) |
| San Francisco to Olching | 5,853.82 mi (9,420.82 km) |
| San Francisco to Oldenburg | 5,498.12 mi (8,848.36 km) |
| San Francisco to Oldenburg in Holstein | 5,499.26 mi (8,850.21 km) |
| San Francisco to Olfen | 5,554.60 mi (8,939.26 km) |
| San Francisco to Olpe | 5,604.70 mi (9,019.90 km) |
| San Francisco to Olsberg | 5,603.52 mi (9,017.99 km) |
| San Francisco to Oranienburg | 5,642.12 mi (9,080.12 km) |
| San Francisco to Ortenberg | 5,673.41 mi (9,130.47 km) |
