| Monsey to Oerlinghausen | 3,785.17 mi (6,091.64 km) |
| Monsey to Oestrich-Winkel | 3,814.57 mi (6,138.96 km) |
| Monsey to Offenburg | 3,856.88 mi (6,207.04 km) |
| Monsey to Oftersheim | 3,856.67 mi (6,206.71 km) |
| Monsey to Ohrdruf | 3,899.02 mi (6,274.87 km) |
| Monsey to Ohringen | 3,898.95 mi (6,274.75 km) |
| Monsey to Olbernhau | 4,005.66 mi (6,446.49 km) |
| Monsey to Olching | 4,004.06 mi (6,443.91 km) |
| Monsey to Oldenburg | 3,735.52 mi (6,011.73 km) |
| Monsey to Oldenburg in Holstein | 3,804.26 mi (6,122.36 km) |
| Monsey to Olfen | 3,741.83 mi (6,021.89 km) |
| Monsey to Olpe | 3,778.97 mi (6,081.66 km) |
| Monsey to Olsberg | 3,795.30 mi (6,107.95 km) |
| Monsey to Oranienburg | 3,936.94 mi (6,335.90 km) |
| Monsey to Ortenberg | 3,846.59 mi (6,190.48 km) |
