| Valparaiso to Orbetello | 4,728.69 mi (7,610.10 km) |
| Valparaiso to Oria | 5,071.23 mi (8,161.35 km) |
| Valparaiso to Oristano | 4,724.80 mi (7,603.82 km) |
| Valparaiso to Orta Nova | 4,957.57 mi (7,978.43 km) |
| Valparaiso to Orte | 4,775.33 mi (7,685.15 km) |
| Valparaiso to Ortona | 4,860.74 mi (7,822.61 km) |
| Valparaiso to Orvieto | 4,753.34 mi (7,649.76 km) |
| Valparaiso to Orzinuovi | 4,556.25 mi (7,332.58 km) |
| Valparaiso to Osimo | 4,775.77 mi (7,685.86 km) |
| Valparaiso to Ospitaletto | 4,555.55 mi (7,331.45 km) |
| Valparaiso to Ostuni | 5,058.71 mi (8,141.20 km) |
| Valparaiso to Ottaviano | 4,929.07 mi (7,932.56 km) |
| Valparaiso to Ovada | 4,535.30 mi (7,298.86 km) |
| Valparaiso to Ozieri | 4,714.19 mi (7,586.76 km) |
| Valparaiso to Paceco | 4,974.22 mi (8,005.23 km) |
