| Port Huron to Ukiah (California) | 2,119.45 mi (3,410.93 km) |
| Port Huron to Union (Missouri) | 546.53 mi (879.56 km) |
| Port Huron to Union City (California) | 2,098.80 mi (3,377.70 km) |
| Port Huron to Union City (Georgia) | 658.73 mi (1,060.12 km) |
| Port Huron to Union City (New Jersey) | 458.51 mi (737.90 km) |
| Port Huron to Union City (Tennessee) | 572.79 mi (921.81 km) |
| Port Huron to Union Hill-Novelty Hill (Washington) | 1,928.56 mi (3,103.71 km) |
| Port Huron to Union Park (Florida) | 998.33 mi (1,606.65 km) |
| Port Huron to Uniondale (New York) | 481.04 mi (774.15 km) |
| Port Huron to Universal City (Texas) | 1,277.25 mi (2,055.53 km) |
| Port Huron to University (Florida) | 1,029.84 mi (1,657.36 km) |
| Port Huron to University City (Missouri) | 508.78 mi (818.81 km) |
| Port Huron to University Heights (Ohio) | 112.68 mi (181.34 km) |
| Port Huron to University of California-Santa Barbara (California) | 2,083.64 mi (3,353.29 km) |
| Port Huron to University Park (Texas) | 1,047.16 mi (1,685.25 km) |
