| Greenwood Village to Oerlinghausen | 4,960.76 mi (7,983.57 km) |
| Greenwood Village to Oestrich-Winkel | 5,030.16 mi (8,095.26 km) |
| Greenwood Village to Offenburg | 5,099.07 mi (8,206.16 km) |
| Greenwood Village to Oftersheim | 5,078.76 mi (8,173.47 km) |
| Greenwood Village to Ohrdruf | 5,079.55 mi (8,174.75 km) |
| Greenwood Village to Ohringen | 5,117.02 mi (8,235.04 km) |
| Greenwood Village to Olbernhau | 5,168.51 mi (8,317.91 km) |
| Greenwood Village to Olching | 5,224.63 mi (8,408.22 km) |
| Greenwood Village to Oldenburg | 4,892.45 mi (7,873.63 km) |
| Greenwood Village to Oldenburg in Holstein | 4,919.78 mi (7,917.62 km) |
| Greenwood Village to Olfen | 4,931.26 mi (7,936.10 km) |
| Greenwood Village to Olpe | 4,977.83 mi (8,011.04 km) |
| Greenwood Village to Olsberg | 4,983.43 mi (8,020.06 km) |
| Greenwood Village to Oranienburg | 5,063.46 mi (8,148.85 km) |
| Greenwood Village to Ortenberg | 5,048.13 mi (8,124.18 km) |
