| North Amityville to Orbetello | 4,179.97 mi (6,727.01 km) |
| North Amityville to Oria | 4,533.01 mi (7,295.17 km) |
| North Amityville to Oristano | 4,149.05 mi (6,677.24 km) |
| North Amityville to Orta Nova | 4,417.60 mi (7,109.43 km) |
| North Amityville to Orte | 4,230.99 mi (6,809.12 km) |
| North Amityville to Ortona | 4,323.07 mi (6,957.30 km) |
| North Amityville to Orvieto | 4,209.89 mi (6,775.16 km) |
| North Amityville to Orzinuovi | 4,025.66 mi (6,478.67 km) |
| North Amityville to Osimo | 4,243.03 mi (6,828.51 km) |
| North Amityville to Ospitaletto | 4,026.68 mi (6,480.31 km) |
| North Amityville to Ostuni | 4,521.90 mi (7,277.30 km) |
| North Amityville to Ottaviano | 4,381.00 mi (7,050.54 km) |
| North Amityville to Ovada | 3,994.29 mi (6,428.19 km) |
| North Amityville to Ozieri | 4,144.51 mi (6,669.94 km) |
| North Amityville to Paceco | 4,399.77 mi (7,080.74 km) |
