| Port Huron to Hoyo de Manzanares | 3,893.32 mi (6,265.69 km) |
| Port Huron to Huelva | 3,872.13 mi (6,231.59 km) |
| Port Huron to Huercal de Almeria | 4,096.30 mi (6,592.37 km) |
| Port Huron to Huercal-Overa | 4,100.56 mi (6,599.22 km) |
| Port Huron to Huesca | 3,994.57 mi (6,428.64 km) |
| Port Huron to Huetor Vega | 4,033.77 mi (6,491.72 km) |
| Port Huron to Huetor-Tajar | 4,009.82 mi (6,453.19 km) |
| Port Huron to Humanes de Madrid | 3,909.19 mi (6,291.24 km) |
| Port Huron to Ibi | 4,115.90 mi (6,623.90 km) |
| Port Huron to Ibiza | 4,195.78 mi (6,752.46 km) |
| Port Huron to Icod de los Vinos | 3,728.57 mi (6,000.56 km) |
| Port Huron to Igualada | 4,103.81 mi (6,604.45 km) |
| Port Huron to Illescas | 3,913.80 mi (6,298.65 km) |
| Port Huron to Inca | 4,230.96 mi (6,809.07 km) |
| Port Huron to Ingenio | 3,808.95 mi (6,129.92 km) |
