| Manhattan to Oerlinghausen | 3,796.56 mi (6,109.97 km) |
| Manhattan to Oestrich-Winkel | 3,825.08 mi (6,155.88 km) |
| Manhattan to Offenburg | 3,866.75 mi (6,222.93 km) |
| Manhattan to Oftersheim | 3,866.99 mi (6,223.32 km) |
| Manhattan to Ohrdruf | 3,910.19 mi (6,292.85 km) |
| Manhattan to Ohringen | 3,909.32 mi (6,291.44 km) |
| Manhattan to Olbernhau | 4,017.09 mi (6,464.88 km) |
| Manhattan to Olching | 4,014.27 mi (6,460.34 km) |
| Manhattan to Oldenburg | 3,747.34 mi (6,030.76 km) |
| Manhattan to Oldenburg in Holstein | 3,816.81 mi (6,142.57 km) |
| Manhattan to Olfen | 3,752.98 mi (6,039.83 km) |
| Manhattan to Olpe | 3,789.88 mi (6,099.22 km) |
| Manhattan to Olsberg | 3,806.42 mi (6,125.84 km) |
| Manhattan to Oranienburg | 3,949.15 mi (6,355.55 km) |
| Manhattan to Ortenberg | 3,857.37 mi (6,207.83 km) |
