| Park Ridge to Noventa Vicentina | 4,630.59 mi (7,452.21 km) |
| Park Ridge to Novi di Modena | 4,622.25 mi (7,438.80 km) |
| Park Ridge to Novi Ligure | 4,544.43 mi (7,313.56 km) |
| Park Ridge to Nuoro | 4,750.91 mi (7,645.85 km) |
| Park Ridge to Occhiobello | 4,647.59 mi (7,479.57 km) |
| Park Ridge to Oderzo | 4,646.60 mi (7,477.99 km) |
| Park Ridge to Oggiono | 4,525.13 mi (7,282.50 km) |
| Park Ridge to Olbia | 4,732.49 mi (7,616.21 km) |
| Park Ridge to Oleggio | 4,504.45 mi (7,249.21 km) |
| Park Ridge to Olgiate Comasco | 4,510.15 mi (7,258.39 km) |
| Park Ridge to Olgiate Olona | 4,512.93 mi (7,262.86 km) |
| Park Ridge to Omegna | 4,484.41 mi (7,216.96 km) |
| Park Ridge to Opera | 4,536.13 mi (7,300.20 km) |
| Park Ridge to Oppeano | 4,616.33 mi (7,429.26 km) |
| Park Ridge to Orbassano | 4,484.75 mi (7,217.51 km) |
