| Mount Vernon to Noventa Vicentina | 4,107.22 mi (6,609.92 km) |
| Mount Vernon to Novi di Modena | 4,093.25 mi (6,587.46 km) |
| Mount Vernon to Novi Ligure | 4,006.46 mi (6,447.77 km) |
| Mount Vernon to Nuoro | 4,180.52 mi (6,727.89 km) |
| Mount Vernon to Occhiobello | 4,121.41 mi (6,632.77 km) |
| Mount Vernon to Oderzo | 4,131.07 mi (6,648.31 km) |
| Mount Vernon to Oggiono | 3,997.80 mi (6,433.84 km) |
| Mount Vernon to Olbia | 4,167.12 mi (6,706.33 km) |
| Mount Vernon to Oleggio | 3,972.96 mi (6,393.85 km) |
| Mount Vernon to Olgiate Comasco | 3,981.42 mi (6,407.48 km) |
| Mount Vernon to Olgiate Olona | 3,982.62 mi (6,409.41 km) |
| Mount Vernon to Omegna | 3,954.46 mi (6,364.09 km) |
| Mount Vernon to Opera | 4,004.93 mi (6,445.32 km) |
| Mount Vernon to Oppeano | 4,091.76 mi (6,585.06 km) |
| Mount Vernon to Orbassano | 3,944.32 mi (6,347.77 km) |
