| Port Huron to San Lorenzo de Descardazar | 4,251.39 mi (6,841.95 km) |
| Port Huron to San Lorenzo de El Escorial | 3,882.98 mi (6,249.05 km) |
| Port Huron to San Martin de la Vega | 3,922.34 mi (6,312.40 km) |
| Port Huron to San Martin de Valdeiglesias | 3,879.33 mi (6,243.17 km) |
| Port Huron to San Pedro de Ribas | 4,122.40 mi (6,634.36 km) |
| Port Huron to San Roque | 3,983.71 mi (6,411.17 km) |
| Port Huron to San Sebastian de la Gomera | 3,718.09 mi (5,983.68 km) |
| Port Huron to San Sebastian de los Reyes | 3,907.98 mi (6,289.29 km) |
| Port Huron to San Vicente de Baracaldo | 3,841.15 mi (6,181.73 km) |
| Port Huron to San Vicente de Castellet | 4,111.32 mi (6,616.54 km) |
| Port Huron to San Vicente del Raspeig | 4,126.84 mi (6,641.50 km) |
| Port Huron to San Vicente dels Horts | 4,127.77 mi (6,643.01 km) |
| Port Huron to Sangenjo | 3,611.37 mi (5,811.94 km) |
| Port Huron to Sanlucar de Barrameda | 3,917.82 mi (6,305.12 km) |
| Port Huron to Sanlucar la Mayor | 3,902.49 mi (6,280.45 km) |
