| Wheat Ridge to Noventa Vicentina | 5,372.09 mi (8,645.55 km) |
| Wheat Ridge to Novi di Modena | 5,369.45 mi (8,641.30 km) |
| Wheat Ridge to Novi Ligure | 5,301.87 mi (8,532.53 km) |
| Wheat Ridge to Nuoro | 5,536.12 mi (8,909.53 km) |
| Wheat Ridge to Occhiobello | 5,391.52 mi (8,676.81 km) |
| Wheat Ridge to Oderzo | 5,380.04 mi (8,658.35 km) |
| Wheat Ridge to Oggiono | 5,272.63 mi (8,485.48 km) |
| Wheat Ridge to Olbia | 5,513.14 mi (8,872.55 km) |
| Wheat Ridge to Oleggio | 5,256.39 mi (8,459.35 km) |
| Wheat Ridge to Olgiate Comasco | 5,259.30 mi (8,464.03 km) |
| Wheat Ridge to Olgiate Olona | 5,263.56 mi (8,470.87 km) |
| Wheat Ridge to Omegna | 5,235.25 mi (8,425.33 km) |
| Wheat Ridge to Opera | 5,287.16 mi (8,508.87 km) |
| Wheat Ridge to Oppeano | 5,359.29 mi (8,624.95 km) |
| Wheat Ridge to Orbassano | 5,245.67 mi (8,442.09 km) |
