| Five Corners to Orbetello | 5,717.76 mi (9,201.84 km) |
| Five Corners to Oria | 5,994.35 mi (9,646.97 km) |
| Five Corners to Oristano | 5,796.71 mi (9,328.90 km) |
| Five Corners to Orta Nova | 5,897.43 mi (9,490.99 km) |
| Five Corners to Orte | 5,746.61 mi (9,248.28 km) |
| Five Corners to Ortona | 5,803.46 mi (9,339.77 km) |
| Five Corners to Orvieto | 5,724.16 mi (9,212.15 km) |
| Five Corners to Orzinuovi | 5,509.68 mi (8,866.97 km) |
| Five Corners to Osimo | 5,712.49 mi (9,193.37 km) |
| Five Corners to Ospitaletto | 5,504.08 mi (8,857.96 km) |
| Five Corners to Ostuni | 5,978.76 mi (9,621.89 km) |
| Five Corners to Ottaviano | 5,896.39 mi (9,489.32 km) |
| Five Corners to Ovada | 5,521.08 mi (8,885.33 km) |
| Five Corners to Ozieri | 5,768.30 mi (9,283.18 km) |
| Five Corners to Paceco | 6,019.59 mi (9,687.59 km) |
