| Santa Monica to Nuth | 5,664.79 mi (9,116.60 km) |
| Santa Monica to Oegstgeest | 5,559.65 mi (8,947.39 km) |
| Santa Monica to Oirschot | 5,618.25 mi (9,041.71 km) |
| Santa Monica to Oisterwijk | 5,611.13 mi (9,030.24 km) |
| Santa Monica to Oldebroek | 5,588.79 mi (8,994.29 km) |
| Santa Monica to Oldenzaal | 5,625.45 mi (9,053.29 km) |
| Santa Monica to Ommen | 5,600.47 mi (9,013.08 km) |
| Santa Monica to Oosterend | 5,566.01 mi (8,957.63 km) |
| Santa Monica to Oosterhout | 5,597.88 mi (9,008.92 km) |
| Santa Monica to Oosterwolde | 5,573.14 mi (8,969.11 km) |
| Santa Monica to Oostzaan | 5,559.76 mi (8,947.56 km) |
| Santa Monica to Opmeer | 5,548.60 mi (8,929.60 km) |
| Santa Monica to Oss | 5,611.49 mi (9,030.82 km) |
| Santa Monica to Oud-Beijerland | 5,575.61 mi (8,973.07 km) |
| Santa Monica to Oudenbosch | 5,590.50 mi (8,997.04 km) |
