| Port Huron to Brown Deer (Wisconsin) | 279.66 mi (450.07 km) |
| Port Huron to Brownsburg (Indiana) | 298.42 mi (480.26 km) |
| Port Huron to Brownsville (Florida) | 1,192.15 mi (1,918.59 km) |
| Port Huron to Brownsville (Texas) | 1,447.19 mi (2,329.03 km) |
| Port Huron to Brownwood (Texas) | 1,192.47 mi (1,919.10 km) |
| Port Huron to Brunswick (Georgia) | 819.58 mi (1,318.99 km) |
| Port Huron to Brunswick (Ohio) | 124.04 mi (199.63 km) |
| Port Huron to Brushy Creek (Texas) | 1,204.42 mi (1,938.32 km) |
| Port Huron to Bryan (Texas) | 1,145.26 mi (1,843.12 km) |
| Port Huron to Bryant (Arkansas) | 790.81 mi (1,272.69 km) |
| Port Huron to Bryn Mawr-Skyway (Washington) | 1,939.62 mi (3,121.52 km) |
| Port Huron to Buckeye (Arizona) | 1,755.73 mi (2,825.57 km) |
| Port Huron to Buckhall (Virginia) | 393.04 mi (632.54 km) |
| Port Huron to Bucyrus (Ohio) | 152.87 mi (246.03 km) |
| Port Huron to Buda (Texas) | 1,231.83 mi (1,982.43 km) |
