| Boone to Noventa Vicentina | 4,640.56 mi (7,468.26 km) |
| Boone to Novi di Modena | 4,626.61 mi (7,445.81 km) |
| Boone to Novi Ligure | 4,539.72 mi (7,305.97 km) |
| Boone to Nuoro | 4,711.64 mi (7,582.65 km) |
| Boone to Occhiobello | 4,654.77 mi (7,491.13 km) |
| Boone to Oderzo | 4,664.29 mi (7,506.45 km) |
| Boone to Oggiono | 4,531.16 mi (7,292.20 km) |
| Boone to Olbia | 4,698.76 mi (7,561.92 km) |
| Boone to Oleggio | 4,506.31 mi (7,252.20 km) |
| Boone to Olgiate Comasco | 4,514.78 mi (7,265.84 km) |
| Boone to Olgiate Olona | 4,515.98 mi (7,267.77 km) |
| Boone to Omegna | 4,487.82 mi (7,222.45 km) |
| Boone to Opera | 4,538.29 mi (7,303.66 km) |
| Boone to Oppeano | 4,625.11 mi (7,443.40 km) |
| Boone to Orbassano | 4,477.54 mi (7,205.91 km) |
