| Ocean Acres to Orbetello | 4,254.33 mi (6,846.68 km) |
| Ocean Acres to Oria | 4,607.88 mi (7,415.66 km) |
| Ocean Acres to Oristano | 4,221.31 mi (6,793.54 km) |
| Ocean Acres to Orta Nova | 4,492.42 mi (7,229.85 km) |
| Ocean Acres to Orte | 4,305.63 mi (6,929.24 km) |
| Ocean Acres to Ortona | 4,398.09 mi (7,078.04 km) |
| Ocean Acres to Orvieto | 4,284.60 mi (6,895.39 km) |
| Ocean Acres to Orzinuovi | 4,101.29 mi (6,600.39 km) |
| Ocean Acres to Osimo | 4,318.41 mi (6,949.82 km) |
| Ocean Acres to Ospitaletto | 4,102.41 mi (6,602.19 km) |
| Ocean Acres to Ostuni | 4,596.87 mi (7,397.95 km) |
| Ocean Acres to Ottaviano | 4,455.29 mi (7,170.10 km) |
| Ocean Acres to Ovada | 4,069.29 mi (6,548.89 km) |
| Ocean Acres to Ozieri | 4,217.29 mi (6,787.07 km) |
| Ocean Acres to Paceco | 4,471.98 mi (7,196.96 km) |
