| Port Huron to Nowy Dwor Mazowiecki | 4,419.69 mi (7,112.81 km) |
| Port Huron to Nowy Sacz | 4,538.73 mi (7,304.38 km) |
| Port Huron to Nowy Targ | 4,521.57 mi (7,276.77 km) |
| Port Huron to Nowy Tomysl | 4,268.41 mi (6,869.35 km) |
| Port Huron to Nysa | 4,384.67 mi (7,056.45 km) |
| Port Huron to Oborniki | 4,278.79 mi (6,886.05 km) |
| Port Huron to Oborniki Slaskie | 4,335.83 mi (6,977.84 km) |
| Port Huron to Olawa | 4,364.62 mi (7,024.18 km) |
| Port Huron to Olecko | 4,410.23 mi (7,097.58 km) |
| Port Huron to Olesnica | 4,356.70 mi (7,011.43 km) |
| Port Huron to Olesno | 4,406.16 mi (7,091.03 km) |
| Port Huron to Olkusz | 4,471.09 mi (7,195.53 km) |
| Port Huron to Olsztyn | 4,355.67 mi (7,009.77 km) |
| Port Huron to Opalenica | 4,278.48 mi (6,885.54 km) |
| Port Huron to Opoczno | 4,449.73 mi (7,161.15 km) |
