| Harper Woods to Noventa Vicentina | 4,418.72 mi (7,111.24 km) |
| Harper Woods to Novi di Modena | 4,408.86 mi (7,095.37 km) |
| Harper Woods to Novi Ligure | 4,328.51 mi (6,966.06 km) |
| Harper Woods to Nuoro | 4,526.92 mi (7,285.38 km) |
| Harper Woods to Occhiobello | 4,435.00 mi (7,137.44 km) |
| Harper Woods to Oderzo | 4,436.88 mi (7,140.47 km) |
| Harper Woods to Oggiono | 4,311.99 mi (6,939.48 km) |
| Harper Woods to Olbia | 4,509.76 mi (7,257.76 km) |
| Harper Woods to Oleggio | 4,290.16 mi (6,904.34 km) |
| Harper Woods to Olgiate Comasco | 4,296.60 mi (6,914.72 km) |
| Harper Woods to Olgiate Olona | 4,298.97 mi (6,918.52 km) |
| Harper Woods to Omegna | 4,270.49 mi (6,872.69 km) |
| Harper Woods to Opera | 4,321.98 mi (6,955.56 km) |
| Harper Woods to Oppeano | 4,404.11 mi (7,087.73 km) |
| Harper Woods to Orbassano | 4,268.06 mi (6,868.78 km) |
