| Hampton Bays to Orbetello | 4,134.37 mi (6,653.62 km) |
| Hampton Bays to Oria | 4,487.67 mi (7,222.21 km) |
| Hampton Bays to Oristano | 4,102.59 mi (6,602.47 km) |
| Hampton Bays to Orta Nova | 4,372.23 mi (7,036.43 km) |
| Hampton Bays to Orte | 4,185.53 mi (6,735.96 km) |
| Hampton Bays to Ortona | 4,277.81 mi (6,884.47 km) |
| Hampton Bays to Orvieto | 4,164.46 mi (6,702.06 km) |
| Hampton Bays to Orzinuovi | 3,980.76 mi (6,406.41 km) |
| Hampton Bays to Osimo | 4,197.98 mi (6,756.00 km) |
| Hampton Bays to Ospitaletto | 3,981.84 mi (6,408.15 km) |
| Hampton Bays to Ostuni | 4,476.62 mi (7,204.42 km) |
| Hampton Bays to Ottaviano | 4,335.37 mi (6,977.10 km) |
| Hampton Bays to Ovada | 3,949.02 mi (6,355.33 km) |
| Hampton Bays to Ozieri | 4,098.23 mi (6,595.47 km) |
| Hampton Bays to Paceco | 4,353.29 mi (7,005.95 km) |
