| Overland Park to Oerlinghausen | 4,659.38 mi (7,498.55 km) |
| Overland Park to Oestrich-Winkel | 4,713.62 mi (7,585.84 km) |
| Overland Park to Offenburg | 4,772.48 mi (7,680.57 km) |
| Overland Park to Oftersheim | 4,760.12 mi (7,660.68 km) |
| Overland Park to Ohrdruf | 4,777.62 mi (7,688.84 km) |
| Overland Park to Ohringen | 4,800.42 mi (7,725.54 km) |
| Overland Park to Olbernhau | 4,874.67 mi (7,845.03 km) |
| Overland Park to Olching | 4,908.16 mi (7,898.93 km) |
| Overland Park to Oldenburg | 4,597.59 mi (7,399.10 km) |
| Overland Park to Oldenburg in Holstein | 4,641.45 mi (7,469.69 km) |
| Overland Park to Olfen | 4,624.04 mi (7,441.68 km) |
| Overland Park to Olpe | 4,667.40 mi (7,511.46 km) |
| Overland Park to Olsberg | 4,677.35 mi (7,527.47 km) |
| Overland Park to Oranienburg | 4,782.71 mi (7,697.02 km) |
| Overland Park to Ortenberg | 4,737.43 mi (7,624.16 km) |
