| Bronx to Orbetello | 4,194.47 mi (6,750.35 km) |
| Bronx to Oria | 4,547.13 mi (7,317.90 km) |
| Bronx to Oristano | 4,164.89 mi (6,702.74 km) |
| Bronx to Orta Nova | 4,431.76 mi (7,132.23 km) |
| Bronx to Orte | 4,245.30 mi (6,832.15 km) |
| Bronx to Ortona | 4,337.08 mi (6,979.86 km) |
| Bronx to Orvieto | 4,224.14 mi (6,798.10 km) |
| Bronx to Orzinuovi | 4,039.21 mi (6,500.49 km) |
| Bronx to Osimo | 4,256.78 mi (6,850.63 km) |
| Bronx to Ospitaletto | 4,040.15 mi (6,501.99 km) |
| Bronx to Ostuni | 4,535.95 mi (7,299.91 km) |
| Bronx to Ottaviano | 4,395.55 mi (7,073.95 km) |
| Bronx to Ovada | 4,008.34 mi (6,450.80 km) |
| Bronx to Ozieri | 4,160.04 mi (6,694.94 km) |
| Bronx to Paceco | 4,415.63 mi (7,106.27 km) |
