| Altadena to Nuth | 5,644.42 mi (9,083.81 km) |
| Altadena to Oegstgeest | 5,539.32 mi (8,914.68 km) |
| Altadena to Oirschot | 5,597.90 mi (9,008.96 km) |
| Altadena to Oisterwijk | 5,590.78 mi (8,997.50 km) |
| Altadena to Oldebroek | 5,568.62 mi (8,961.83 km) |
| Altadena to Oldenzaal | 5,605.35 mi (9,020.95 km) |
| Altadena to Ommen | 5,580.35 mi (8,980.71 km) |
| Altadena to Oosterend | 5,545.93 mi (8,925.32 km) |
| Altadena to Oosterhout | 5,577.51 mi (8,976.14 km) |
| Altadena to Oosterwolde | 5,553.08 mi (8,936.82 km) |
| Altadena to Oostzaan | 5,539.50 mi (8,914.96 km) |
| Altadena to Opmeer | 5,528.38 mi (8,897.07 km) |
| Altadena to Oss | 5,591.20 mi (8,998.16 km) |
| Altadena to Oud-Beijerland | 5,555.22 mi (8,940.27 km) |
| Altadena to Oudenbosch | 5,570.09 mi (8,964.20 km) |
