| Santa Monica to Oerlinghausen | 5,692.90 mi (9,161.84 km) |
| Santa Monica to Oestrich-Winkel | 5,774.57 mi (9,293.27 km) |
| Santa Monica to Offenburg | 5,851.18 mi (9,416.56 km) |
| Santa Monica to Oftersheim | 5,824.39 mi (9,373.46 km) |
| Santa Monica to Ohrdruf | 5,810.70 mi (9,351.41 km) |
| Santa Monica to Ohringen | 5,860.48 mi (9,431.54 km) |
| Santa Monica to Olbernhau | 5,891.27 mi (9,481.08 km) |
| Santa Monica to Olching | 5,966.76 mi (9,602.58 km) |
| Santa Monica to Oldenburg | 5,619.74 mi (9,044.10 km) |
| Santa Monica to Oldenburg in Holstein | 5,631.79 mi (9,063.50 km) |
| Santa Monica to Olfen | 5,668.85 mi (9,123.13 km) |
| Santa Monica to Olpe | 5,717.62 mi (9,201.62 km) |
| Santa Monica to Olsberg | 5,719.40 mi (9,204.49 km) |
| Santa Monica to Oranienburg | 5,775.66 mi (9,295.03 km) |
| Santa Monica to Ortenberg | 5,787.32 mi (9,313.79 km) |
