| Port Huron to Argentona | 4,138.86 mi (6,660.84 km) |
| Port Huron to Arico el Nuevo | 3,744.97 mi (6,026.94 km) |
| Port Huron to Armilla | 4,031.45 mi (6,487.99 km) |
| Port Huron to Arnedo | 3,917.54 mi (6,304.68 km) |
| Port Huron to Arona | 3,739.33 mi (6,017.88 km) |
| Port Huron to Arrecife | 3,862.09 mi (6,215.43 km) |
| Port Huron to Arrigorriaga | 3,848.81 mi (6,194.06 km) |
| Port Huron to Arroyomolinos | 3,905.47 mi (6,285.24 km) |
| Port Huron to Arteijo | 3,596.18 mi (5,787.49 km) |
| Port Huron to Arucas | 3,796.64 mi (6,110.10 km) |
| Port Huron to Aspe | 4,117.68 mi (6,626.76 km) |
| Port Huron to Astorga | 3,733.06 mi (6,007.78 km) |
| Port Huron to Atarfe | 4,025.34 mi (6,478.16 km) |
| Port Huron to Avila | 3,856.55 mi (6,206.51 km) |
| Port Huron to Aviles | 3,704.11 mi (5,961.20 km) |
