| Port Huron to San Vendemiano | 4,383.36 mi (7,054.34 km) |
| Port Huron to San Vito al Tagliamento | 4,403.67 mi (7,087.02 km) |
| Port Huron to San Vito dei Normanni | 4,817.86 mi (7,753.60 km) |
| Port Huron to Sannicandro di Bari | 4,766.29 mi (7,670.60 km) |
| Port Huron to Sannicandro Garganico | 4,680.40 mi (7,532.38 km) |
| Port Huron to Sansepolcro | 4,469.25 mi (7,192.56 km) |
| Port Huron to Sant'Agata de' Goti | 4,668.88 mi (7,513.84 km) |
| Port Huron to Sant'Agata di Militello | 4,805.11 mi (7,733.08 km) |
| Port Huron to Sant'Agnello | 4,684.55 mi (7,539.06 km) |
| Port Huron to Sant'Ambrogio di Valpolicella | 4,338.76 mi (6,982.56 km) |
| Port Huron to Sant'Anastasia | 4,674.41 mi (7,522.73 km) |
| Port Huron to Sant'Angelo Lodigiano | 4,292.74 mi (6,908.49 km) |
| Port Huron to Sant'Antimo | 4,664.40 mi (7,506.63 km) |
| Port Huron to Sant'Antioco | 4,498.96 mi (7,240.38 km) |
| Port Huron to Sant'Antonio Abate | 4,686.28 mi (7,541.84 km) |
