| Port Huron to Ayamonte | 3,852.77 mi (6,200.44 km) |
| Port Huron to Azcoitia | 3,875.00 mi (6,236.20 km) |
| Port Huron to Azpeitia | 3,876.89 mi (6,239.25 km) |
| Port Huron to Azuqueca de Henares | 3,923.49 mi (6,314.25 km) |
| Port Huron to Badajoz | 3,813.12 mi (6,136.63 km) |
| Port Huron to Badalona | 4,136.04 mi (6,656.32 km) |
| Port Huron to Baena | 3,981.73 mi (6,407.98 km) |
| Port Huron to Baeza | 4,007.59 mi (6,449.59 km) |
| Port Huron to Bailen | 3,990.08 mi (6,421.42 km) |
| Port Huron to Balaguer | 4,060.50 mi (6,534.74 km) |
| Port Huron to Banolas | 4,133.68 mi (6,652.51 km) |
| Port Huron to Baranain | 3,916.28 mi (6,302.64 km) |
| Port Huron to Barbadanes | 3,655.34 mi (5,882.70 km) |
| Port Huron to Barbastro | 4,021.86 mi (6,472.56 km) |
| Port Huron to Barcelona | 4,135.47 mi (6,655.40 km) |
