| Preili to Orbetello | 1,178.96 mi (1,897.35 km) |
| Preili to Oria | 1,166.13 mi (1,876.70 km) |
| Preili to Oristano | 1,398.78 mi (2,251.11 km) |
| Preili to Orta Nova | 1,145.84 mi (1,844.05 km) |
| Preili to Orte | 1,148.21 mi (1,847.86 km) |
| Preili to Ortona | 1,108.27 mi (1,783.58 km) |
| Preili to Orvieto | 1,139.46 mi (1,833.78 km) |
| Preili to Orzinuovi | 1,044.96 mi (1,681.71 km) |
| Preili to Osimo | 1,059.57 mi (1,705.21 km) |
| Preili to Ospitaletto | 1,032.33 mi (1,661.38 km) |
| Preili to Ostuni | 1,151.57 mi (1,853.28 km) |
| Preili to Ottaviano | 1,201.12 mi (1,933.01 km) |
| Preili to Ovada | 1,125.05 mi (1,810.59 km) |
| Preili to Ozieri | 1,347.30 mi (2,168.27 km) |
| Preili to Paceco | 1,423.61 mi (2,291.08 km) |
