| Port Huron to San Giovanni Lupatoto | 4,352.04 mi (7,003.93 km) |
| Port Huron to San Giovanni Rotondo | 4,692.86 mi (7,552.43 km) |
| Port Huron to San Giovanni Valdarno | 4,444.98 mi (7,153.51 km) |
| Port Huron to San Giuliano Milanese | 4,281.41 mi (6,890.26 km) |
| Port Huron to San Giuliano Terme | 4,392.67 mi (7,069.32 km) |
| Port Huron to San Giuseppe Iato | 4,748.09 mi (7,641.32 km) |
| Port Huron to San Giuseppe Vesuviano | 4,679.94 mi (7,531.64 km) |
| Port Huron to San Giustino | 4,471.89 mi (7,196.81 km) |
| Port Huron to San Gregorio di Catania | 4,847.48 mi (7,801.27 km) |
| Port Huron to San Lazzaro di Savena | 4,403.22 mi (7,086.31 km) |
| Port Huron to San Marco in Lamis | 4,688.39 mi (7,545.24 km) |
| Port Huron to San Martino Buon Albergo | 4,353.37 mi (7,006.07 km) |
| Port Huron to San Martino di Lupari | 4,373.93 mi (7,039.16 km) |
| Port Huron to San Marzano di San Giuseppe | 4,818.75 mi (7,755.03 km) |
| Port Huron to San Marzano sul Sarno | 4,686.55 mi (7,542.28 km) |
