| Grand Forks to Noventa Vicentina | 4,688.73 mi (7,545.78 km) |
| Grand Forks to Novi di Modena | 4,687.12 mi (7,543.19 km) |
| Grand Forks to Novi Ligure | 4,621.79 mi (7,438.05 km) |
| Grand Forks to Nuoro | 4,862.81 mi (7,825.94 km) |
| Grand Forks to Occhiobello | 4,708.54 mi (7,577.66 km) |
| Grand Forks to Oderzo | 4,695.37 mi (7,556.47 km) |
| Grand Forks to Oggiono | 4,590.57 mi (7,387.80 km) |
| Grand Forks to Olbia | 4,838.50 mi (7,786.81 km) |
| Grand Forks to Oleggio | 4,575.25 mi (7,363.16 km) |
| Grand Forks to Olgiate Comasco | 4,577.59 mi (7,366.92 km) |
| Grand Forks to Olgiate Olona | 4,582.13 mi (7,374.22 km) |
| Grand Forks to Omegna | 4,553.94 mi (7,328.85 km) |
| Grand Forks to Opera | 4,605.76 mi (7,412.26 km) |
| Grand Forks to Oppeano | 4,676.21 mi (7,525.63 km) |
| Grand Forks to Orbassano | 4,566.53 mi (7,349.12 km) |
