| Prudhoe to Noventa Vicentina | 890.61 mi (1,433.30 km) |
| Prudhoe to Novi di Modena | 894.63 mi (1,439.77 km) |
| Prudhoe to Novi Ligure | 847.20 mi (1,363.44 km) |
| Prudhoe to Nuoro | 1,134.68 mi (1,826.10 km) |
| Prudhoe to Occhiobello | 912.17 mi (1,467.99 km) |
| Prudhoe to Oderzo | 892.16 mi (1,435.79 km) |
| Prudhoe to Oggiono | 801.50 mi (1,289.89 km) |
| Prudhoe to Olbia | 1,100.26 mi (1,770.70 km) |
| Prudhoe to Oleggio | 793.49 mi (1,277.00 km) |
| Prudhoe to Olgiate Comasco | 791.37 mi (1,273.58 km) |
| Prudhoe to Olgiate Olona | 797.93 mi (1,284.15 km) |
| Prudhoe to Omegna | 771.41 mi (1,241.46 km) |
| Prudhoe to Opera | 821.16 mi (1,321.53 km) |
| Prudhoe to Oppeano | 879.61 mi (1,415.60 km) |
| Prudhoe to Orbassano | 802.70 mi (1,291.82 km) |
