| Mount Prospect to Noventa Vicentina | 4,631.88 mi (7,454.28 km) |
| Mount Prospect to Novi di Modena | 4,623.61 mi (7,440.98 km) |
| Mount Prospect to Novi Ligure | 4,545.90 mi (7,315.92 km) |
| Mount Prospect to Nuoro | 4,752.73 mi (7,648.79 km) |
| Mount Prospect to Occhiobello | 4,648.91 mi (7,481.69 km) |
| Mount Prospect to Oderzo | 4,647.80 mi (7,479.92 km) |
| Mount Prospect to Oggiono | 4,526.48 mi (7,284.67 km) |
| Mount Prospect to Olbia | 4,734.26 mi (7,619.05 km) |
| Mount Prospect to Oleggio | 4,505.85 mi (7,251.46 km) |
| Mount Prospect to Olgiate Comasco | 4,511.52 mi (7,260.58 km) |
| Mount Prospect to Olgiate Olona | 4,514.31 mi (7,265.08 km) |
| Mount Prospect to Omegna | 4,485.79 mi (7,219.19 km) |
| Mount Prospect to Opera | 4,537.52 mi (7,302.43 km) |
| Mount Prospect to Oppeano | 4,617.63 mi (7,431.36 km) |
| Mount Prospect to Orbassano | 4,486.25 mi (7,219.92 km) |
