| Port Huron to Saarijarvi | 4,127.84 mi (6,643.11 km) |
| Port Huron to Salo | 4,165.15 mi (6,703.15 km) |
| Port Huron to Sastamala | 4,120.90 mi (6,631.95 km) |
| Port Huron to Savonlinna | 4,255.40 mi (6,848.40 km) |
| Port Huron to Seinajoki | 4,061.98 mi (6,537.13 km) |
| Port Huron to Siilinjarvi | 4,172.84 mi (6,715.54 km) |
| Port Huron to Sipoo | 4,224.47 mi (6,798.63 km) |
| Port Huron to Sippola | 4,255.47 mi (6,848.52 km) |
| Port Huron to Sodankyla | 3,969.93 mi (6,388.98 km) |
| Port Huron to Somero | 4,165.94 mi (6,704.44 km) |
| Port Huron to Sotkamo | 4,145.55 mi (6,671.62 km) |
| Port Huron to Tampere | 4,137.58 mi (6,658.79 km) |
| Port Huron to Tornio | 3,975.92 mi (6,398.63 km) |
| Port Huron to Turku | 4,138.73 mi (6,660.65 km) |
| Port Huron to Tuusula | 4,216.05 mi (6,785.08 km) |
