| Harper Woods to Nasaud | 4,817.16 mi (7,752.48 km) |
| Harper Woods to Navodari | 5,104.83 mi (8,215.42 km) |
| Harper Woods to Negresti-Oas | 4,756.04 mi (7,654.10 km) |
| Harper Woods to Nehoiu | 4,973.78 mi (8,004.53 km) |
| Harper Woods to Ocna Mures | 4,838.48 mi (7,786.77 km) |
| Harper Woods to Odobesti | 4,981.20 mi (8,016.47 km) |
| Harper Woods to Odorheiu Secuiesc | 4,893.33 mi (7,875.05 km) |
| Harper Woods to Oltenita | 5,045.48 mi (8,119.92 km) |
| Harper Woods to Onesti | 4,947.56 mi (7,962.33 km) |
| Harper Woods to Oradea | 4,738.09 mi (7,625.23 km) |
| Harper Woods to Orastie | 4,839.22 mi (7,787.98 km) |
| Harper Woods to Oravita | 4,820.10 mi (7,757.20 km) |
| Harper Woods to Orsova | 4,860.67 mi (7,822.50 km) |
| Harper Woods to Otelu Rosu | 4,823.27 mi (7,762.30 km) |
| Harper Woods to Otopeni | 5,003.15 mi (8,051.79 km) |
