| Westchester to Orbetello | 5,115.59 mi (8,232.75 km) |
| Westchester to Oria | 5,473.85 mi (8,809.31 km) |
| Westchester to Oristano | 5,047.77 mi (8,123.61 km) |
| Westchester to Orta Nova | 5,358.81 mi (8,624.17 km) |
| Westchester to Orte | 5,170.98 mi (8,321.88 km) |
| Westchester to Ortona | 5,269.17 mi (8,479.92 km) |
| Westchester to Orvieto | 5,151.47 mi (8,290.49 km) |
| Westchester to Orzinuovi | 4,986.64 mi (8,025.22 km) |
| Westchester to Osimo | 5,196.78 mi (8,363.40 km) |
| Westchester to Ospitaletto | 4,989.58 mi (8,029.95 km) |
| Westchester to Ostuni | 5,464.72 mi (8,794.62 km) |
| Westchester to Ottaviano | 5,312.80 mi (8,550.13 km) |
| Westchester to Ovada | 4,943.84 mi (7,956.34 km) |
| Westchester to Ozieri | 5,052.37 mi (8,131.01 km) |
| Westchester to Paceco | 5,293.97 mi (8,519.83 km) |
