| Guymon to Noventa Vicentina | 5,405.00 mi (8,698.51 km) |
| Guymon to Novi di Modena | 5,399.33 mi (8,689.39 km) |
| Guymon to Novi Ligure | 5,326.03 mi (8,571.41 km) |
| Guymon to Nuoro | 5,544.70 mi (8,923.34 km) |
| Guymon to Occhiobello | 5,423.20 mi (8,727.79 km) |
| Guymon to Oderzo | 5,417.18 mi (8,718.11 km) |
| Guymon to Oggiono | 5,302.11 mi (8,532.93 km) |
| Guymon to Olbia | 5,524.43 mi (8,890.71 km) |
| Guymon to Oleggio | 5,283.45 mi (8,502.89 km) |
| Guymon to Olgiate Comasco | 5,287.87 mi (8,510.00 km) |
| Guymon to Olgiate Olona | 5,291.34 mi (8,515.58 km) |
| Guymon to Omegna | 5,262.85 mi (8,469.74 km) |
| Guymon to Opera | 5,314.78 mi (8,553.31 km) |
| Guymon to Oppeano | 5,391.40 mi (8,676.62 km) |
| Guymon to Orbassano | 5,267.77 mi (8,477.66 km) |
