| Southern Pines to Nuth | 4,192.55 mi (6,747.26 km) |
| Southern Pines to Oegstgeest | 4,105.31 mi (6,606.86 km) |
| Southern Pines to Oirschot | 4,154.75 mi (6,686.43 km) |
| Southern Pines to Oisterwijk | 4,148.73 mi (6,676.74 km) |
| Southern Pines to Oldebroek | 4,156.10 mi (6,688.59 km) |
| Southern Pines to Oldenzaal | 4,200.14 mi (6,759.47 km) |
| Southern Pines to Ommen | 4,174.90 mi (6,718.84 km) |
| Southern Pines to Oosterend | 4,149.55 mi (6,678.05 km) |
| Southern Pines to Oosterhout | 4,133.49 mi (6,652.20 km) |
| Southern Pines to Oosterwolde | 4,158.65 mi (6,692.70 km) |
| Southern Pines to Oostzaan | 4,116.19 mi (6,624.37 km) |
| Southern Pines to Opmeer | 4,112.72 mi (6,618.78 km) |
| Southern Pines to Oss | 4,157.10 mi (6,690.21 km) |
| Southern Pines to Oud-Beijerland | 4,111.04 mi (6,616.08 km) |
| Southern Pines to Oudenbosch | 4,121.30 mi (6,632.59 km) |
