| Port Huron to Oak Grove (South Carolina) | 626.01 mi (1,007.47 km) |
| Port Huron to Oak Harbor (Washington) | 1,952.87 mi (3,142.85 km) |
| Port Huron to Oak Hills (Oregon) | 1,985.81 mi (3,195.85 km) |
| Port Huron to Oak Lawn (Illinois) | 285.09 mi (458.81 km) |
| Port Huron to Oak Park (California) | 2,036.18 mi (3,276.91 km) |
| Port Huron to Oak Park (Illinois) | 283.11 mi (455.62 km) |
| Port Huron to Oak Park (Michigan) | 51.98 mi (83.65 km) |
| Port Huron to Oak Ridge (Florida) | 1,004.12 mi (1,615.97 km) |
| Port Huron to Oak Ridge (New Jersey) | 429.21 mi (690.74 km) |
| Port Huron to Oak Ridge (Tennessee) | 494.86 mi (796.40 km) |
| Port Huron to Oakdale (California) | 2,035.47 mi (3,275.78 km) |
| Port Huron to Oakdale (Minnesota) | 540.85 mi (870.42 km) |
| Port Huron to Oakland (California) | 2,103.83 mi (3,385.79 km) |
| Port Huron to Oakland (New Jersey) | 441.73 mi (710.89 km) |
| Port Huron to Oakland Park (Florida) | 1,168.18 mi (1,880.01 km) |
