| Port Huron to Alenquer | 3,712.28 mi (5,974.33 km) |
| Port Huron to Alfena | 3,661.78 mi (5,893.07 km) |
| Port Huron to Alijo | 3,708.46 mi (5,968.19 km) |
| Port Huron to Aljustrel | 3,791.30 mi (6,101.51 km) |
| Port Huron to Almada | 3,718.30 mi (5,984.03 km) |
| Port Huron to Almargem | 3,707.29 mi (5,966.30 km) |
| Port Huron to Almeirim | 3,725.80 mi (5,996.10 km) |
| Port Huron to Amadora | 3,712.98 mi (5,975.46 km) |
| Port Huron to Amarante | 3,681.79 mi (5,925.28 km) |
| Port Huron to Amares | 3,658.16 mi (5,887.25 km) |
| Port Huron to Amora | 3,722.00 mi (5,989.97 km) |
| Port Huron to Anadia | 3,692.64 mi (5,942.73 km) |
| Port Huron to Angra do Heroismo | 2,850.87 mi (4,588.03 km) |
| Port Huron to Ansiao | 3,709.98 mi (5,970.63 km) |
| Port Huron to Anta | 3,664.80 mi (5,897.93 km) |
