| Detroit to Noventa Vicentina | 4,428.01 mi (7,126.19 km) |
| Detroit to Novi di Modena | 4,418.18 mi (7,110.37 km) |
| Detroit to Novi Ligure | 4,337.87 mi (6,981.13 km) |
| Detroit to Nuoro | 4,536.42 mi (7,300.66 km) |
| Detroit to Occhiobello | 4,444.30 mi (7,152.42 km) |
| Detroit to Oderzo | 4,446.13 mi (7,155.36 km) |
| Detroit to Oggiono | 4,321.30 mi (6,954.47 km) |
| Detroit to Olbia | 4,519.24 mi (7,273.01 km) |
| Detroit to Oleggio | 4,299.49 mi (6,919.37 km) |
| Detroit to Olgiate Comasco | 4,305.93 mi (6,929.72 km) |
| Detroit to Olgiate Olona | 4,308.30 mi (6,933.54 km) |
| Detroit to Omegna | 4,279.82 mi (6,887.70 km) |
| Detroit to Opera | 4,331.31 mi (6,970.58 km) |
| Detroit to Oppeano | 4,413.41 mi (7,102.69 km) |
| Detroit to Orbassano | 4,277.44 mi (6,883.87 km) |
