| East Cleveland to Orbetello | 4,500.26 mi (7,242.46 km) |
| East Cleveland to Oria | 4,847.26 mi (7,800.91 km) |
| East Cleveland to Oristano | 4,486.60 mi (7,220.48 km) |
| East Cleveland to Orta Nova | 4,732.75 mi (7,616.62 km) |
| East Cleveland to Orte | 4,548.57 mi (7,320.22 km) |
| East Cleveland to Ortona | 4,636.58 mi (7,461.85 km) |
| East Cleveland to Orvieto | 4,526.86 mi (7,285.28 km) |
| East Cleveland to Orzinuovi | 4,334.05 mi (6,974.99 km) |
| East Cleveland to Osimo | 4,553.25 mi (7,327.74 km) |
| East Cleveland to Ospitaletto | 4,333.97 mi (6,974.86 km) |
| East Cleveland to Ostuni | 4,835.23 mi (7,781.56 km) |
| East Cleveland to Ottaviano | 4,701.23 mi (7,565.91 km) |
| East Cleveland to Ovada | 4,309.28 mi (6,935.12 km) |
| East Cleveland to Ozieri | 4,478.16 mi (7,206.90 km) |
| East Cleveland to Paceco | 4,736.88 mi (7,623.26 km) |
