| Port Huron to Tutzing | 4,262.96 mi (6,860.57 km) |
| Port Huron to Twist | 3,932.74 mi (6,329.13 km) |
| Port Huron to Twistringen | 3,985.31 mi (6,413.74 km) |
| Port Huron to Ubach-Palenberg | 3,956.24 mi (6,366.95 km) |
| Port Huron to Uberherrn | 4,036.55 mi (6,496.20 km) |
| Port Huron to Uberlingen | 4,186.48 mi (6,737.49 km) |
| Port Huron to Ubstadt-Weiher | 4,113.76 mi (6,620.46 km) |
| Port Huron to Ueckermunde | 4,141.60 mi (6,665.26 km) |
| Port Huron to Uelzen | 4,048.28 mi (6,515.07 km) |
| Port Huron to Uetersen | 3,990.99 mi (6,422.88 km) |
| Port Huron to Uetze | 4,053.14 mi (6,522.89 km) |
| Port Huron to Uhingen | 4,167.84 mi (6,707.48 km) |
| Port Huron to Ulm | 4,194.34 mi (6,750.14 km) |
| Port Huron to Unna | 3,993.94 mi (6,427.63 km) |
| Port Huron to Unterfohring | 4,266.24 mi (6,865.85 km) |
