| Zanesville to Orbetello | 4,582.67 mi (7,375.09 km) |
| Zanesville to Oria | 4,931.39 mi (7,936.30 km) |
| Zanesville to Oristano | 4,564.28 mi (7,345.49 km) |
| Zanesville to Orta Nova | 4,816.59 mi (7,751.55 km) |
| Zanesville to Orte | 4,631.70 mi (7,454.00 km) |
| Zanesville to Ortona | 4,720.76 mi (7,597.33 km) |
| Zanesville to Orvieto | 4,610.13 mi (7,419.28 km) |
| Zanesville to Orzinuovi | 4,419.26 mi (7,112.12 km) |
| Zanesville to Osimo | 4,638.17 mi (7,464.41 km) |
| Zanesville to Ospitaletto | 4,419.44 mi (7,112.40 km) |
| Zanesville to Ostuni | 4,919.58 mi (7,917.30 km) |
| Zanesville to Ottaviano | 4,783.78 mi (7,698.76 km) |
| Zanesville to Ovada | 4,392.90 mi (7,069.68 km) |
| Zanesville to Ozieri | 4,556.96 mi (7,333.71 km) |
| Zanesville to Paceco | 4,814.83 mi (7,748.72 km) |
