| East Patchogue to Orbetello | 4,158.35 mi (6,692.22 km) |
| East Patchogue to Oria | 4,511.53 mi (7,260.61 km) |
| East Patchogue to Oristano | 4,126.96 mi (6,641.71 km) |
| East Patchogue to Orta Nova | 4,396.10 mi (7,074.85 km) |
| East Patchogue to Orte | 4,209.45 mi (6,774.45 km) |
| East Patchogue to Ortona | 4,301.63 mi (6,922.80 km) |
| East Patchogue to Orvieto | 4,188.36 mi (6,740.52 km) |
| East Patchogue to Orzinuovi | 4,004.41 mi (6,444.47 km) |
| East Patchogue to Osimo | 4,221.71 mi (6,794.18 km) |
| East Patchogue to Ospitaletto | 4,005.46 mi (6,446.17 km) |
| East Patchogue to Ostuni | 4,500.45 mi (7,242.78 km) |
| East Patchogue to Ottaviano | 4,359.37 mi (7,015.72 km) |
| East Patchogue to Ovada | 3,972.84 mi (6,393.68 km) |
| East Patchogue to Ozieri | 4,122.53 mi (6,634.57 km) |
| East Patchogue to Paceco | 4,377.68 mi (7,045.19 km) |
