| North Hykeham to Noventa Vicentina | 770.68 mi (1,240.30 km) |
| North Hykeham to Novi di Modena | 772.00 mi (1,242.41 km) |
| North Hykeham to Novi Ligure | 719.49 mi (1,157.90 km) |
| North Hykeham to Nuoro | 1,003.26 mi (1,614.59 km) |
| North Hykeham to Occhiobello | 791.32 mi (1,273.51 km) |
| North Hykeham to Oderzo | 776.55 mi (1,249.74 km) |
| North Hykeham to Oggiono | 677.27 mi (1,089.96 km) |
| North Hykeham to Olbia | 969.37 mi (1,560.05 km) |
| North Hykeham to Oleggio | 667.08 mi (1,073.56 km) |
| North Hykeham to Olgiate Comasco | 666.18 mi (1,072.11 km) |
| North Hykeham to Olgiate Olona | 672.19 mi (1,081.78 km) |
| North Hykeham to Omegna | 645.08 mi (1,038.16 km) |
| North Hykeham to Opera | 695.63 mi (1,119.51 km) |
| North Hykeham to Oppeano | 758.81 mi (1,221.19 km) |
| North Hykeham to Orbassano | 673.02 mi (1,083.11 km) |
