| Hillsborough to Noventa Vicentina | 4,158.62 mi (6,692.66 km) |
| Hillsborough to Novi di Modena | 4,144.69 mi (6,670.23 km) |
| Hillsborough to Novi Ligure | 4,057.91 mi (6,530.58 km) |
| Hillsborough to Nuoro | 4,231.90 mi (6,810.58 km) |
| Hillsborough to Occhiobello | 4,172.83 mi (6,715.52 km) |
| Hillsborough to Oderzo | 4,182.43 mi (6,730.98 km) |
| Hillsborough to Oggiono | 4,049.22 mi (6,516.59 km) |
| Hillsborough to Olbia | 4,218.53 mi (6,789.07 km) |
| Hillsborough to Oleggio | 4,024.39 mi (6,476.63 km) |
| Hillsborough to Olgiate Comasco | 4,032.85 mi (6,490.24 km) |
| Hillsborough to Olgiate Olona | 4,034.06 mi (6,492.19 km) |
| Hillsborough to Omegna | 4,005.89 mi (6,446.86 km) |
| Hillsborough to Opera | 4,056.37 mi (6,528.10 km) |
| Hillsborough to Oppeano | 4,143.18 mi (6,667.80 km) |
| Hillsborough to Orbassano | 3,995.78 mi (6,430.59 km) |
