| Sandusky to Orbetello | 4,550.76 mi (7,323.73 km) |
| Sandusky to Oria | 4,897.02 mi (7,880.99 km) |
| Sandusky to Oristano | 4,538.81 mi (7,304.51 km) |
| Sandusky to Orta Nova | 4,782.64 mi (7,696.92 km) |
| Sandusky to Orte | 4,598.78 mi (7,401.03 km) |
| Sandusky to Ortona | 4,686.34 mi (7,541.94 km) |
| Sandusky to Orvieto | 4,577.02 mi (7,366.00 km) |
| Sandusky to Orzinuovi | 4,383.41 mi (7,054.42 km) |
| Sandusky to Osimo | 4,602.70 mi (7,407.33 km) |
| Sandusky to Ospitaletto | 4,383.22 mi (7,054.11 km) |
| Sandusky to Ostuni | 4,884.90 mi (7,861.49 km) |
| Sandusky to Ottaviano | 4,751.66 mi (7,647.06 km) |
| Sandusky to Ovada | 4,359.32 mi (7,015.65 km) |
| Sandusky to Ozieri | 4,529.99 mi (7,290.31 km) |
| Sandusky to Paceco | 4,788.97 mi (7,707.10 km) |
