| San Diego to Nuth | 5,693.18 mi (9,162.29 km) |
| San Diego to Oegstgeest | 5,588.57 mi (8,993.94 km) |
| San Diego to Oirschot | 5,646.94 mi (9,087.87 km) |
| San Diego to Oisterwijk | 5,639.84 mi (9,076.45 km) |
| San Diego to Oldebroek | 5,619.28 mi (9,043.36 km) |
| San Diego to Oldenzaal | 5,656.64 mi (9,103.47 km) |
| San Diego to Ommen | 5,631.48 mi (9,062.99 km) |
| San Diego to Oosterend | 5,597.39 mi (9,008.13 km) |
| San Diego to Oosterhout | 5,626.39 mi (9,054.79 km) |
| San Diego to Oosterwolde | 5,604.69 mi (9,019.88 km) |
| San Diego to Oostzaan | 5,589.37 mi (8,995.23 km) |
| San Diego to Opmeer | 5,578.64 mi (8,977.95 km) |
| San Diego to Oss | 5,640.73 mi (9,077.87 km) |
| San Diego to Oud-Beijerland | 5,603.96 mi (9,018.71 km) |
| San Diego to Oudenbosch | 5,618.64 mi (9,042.33 km) |
