| Port Huron to Isny im Allgau | 4,223.33 mi (6,796.79 km) |
| Port Huron to Isselburg | 3,938.26 mi (6,338.01 km) |
| Port Huron to Issum | 3,946.61 mi (6,351.46 km) |
| Port Huron to Itzehoe | 3,977.36 mi (6,400.95 km) |
| Port Huron to Jena | 4,159.65 mi (6,694.30 km) |
| Port Huron to Jever | 3,931.91 mi (6,327.79 km) |
| Port Huron to Jork | 3,996.75 mi (6,432.15 km) |
| Port Huron to Juchen | 3,964.48 mi (6,380.21 km) |
| Port Huron to Julich | 3,965.19 mi (6,381.36 km) |
| Port Huron to Juterbog | 4,173.30 mi (6,716.28 km) |
| Port Huron to Kaarst | 3,964.84 mi (6,380.80 km) |
| Port Huron to Kaiserslautern | 4,070.81 mi (6,551.34 km) |
| Port Huron to Kalkar | 3,934.94 mi (6,332.68 km) |
| Port Huron to Kall | 3,985.28 mi (6,413.69 km) |
| Port Huron to Kaltenkirchen | 3,995.96 mi (6,430.87 km) |
