| Socorro to Nuth | 5,401.62 mi (8,693.07 km) |
| Socorro to Oegstgeest | 5,301.12 mi (8,531.33 km) |
| Socorro to Oirschot | 5,357.48 mi (8,622.04 km) |
| Socorro to Oisterwijk | 5,350.63 mi (8,611.01 km) |
| Socorro to Oldebroek | 5,339.63 mi (8,593.31 km) |
| Socorro to Oldenzaal | 5,380.16 mi (8,658.53 km) |
| Socorro to Ommen | 5,354.44 mi (8,617.14 km) |
| Socorro to Oosterend | 5,322.74 mi (8,566.12 km) |
| Socorro to Oosterhout | 5,336.26 mi (8,587.88 km) |
| Socorro to Oosterwolde | 5,330.83 mi (8,579.15 km) |
| Socorro to Oostzaan | 5,305.54 mi (8,538.44 km) |
| Socorro to Opmeer | 5,297.16 mi (8,524.96 km) |
| Socorro to Oss | 5,354.22 mi (8,616.78 km) |
| Socorro to Oud-Beijerland | 5,313.37 mi (8,551.04 km) |
| Socorro to Oudenbosch | 5,326.77 mi (8,572.60 km) |
