| South Portland to Ames | 3,028.18 mi (4,873.38 km) |
| South Portland to Amorebieta | 3,291.03 mi (5,296.40 km) |
| South Portland to Amposta | 3,521.07 mi (5,666.61 km) |
| South Portland to Amurrio | 3,283.72 mi (5,284.63 km) |
| South Portland to Andoain | 3,323.78 mi (5,349.10 km) |
| South Portland to Andraitx | 3,644.12 mi (5,864.64 km) |
| South Portland to Andujar | 3,391.78 mi (5,458.54 km) |
| South Portland to Antequera | 3,401.69 mi (5,474.50 km) |
| South Portland to Antigua | 3,248.61 mi (5,228.14 km) |
| South Portland to Aranda de Duero | 3,293.18 mi (5,299.86 km) |
| South Portland to Aranjuez | 3,348.15 mi (5,388.33 km) |
| South Portland to Archena | 3,519.93 mi (5,664.78 km) |
| South Portland to Arcos de la Frontera | 3,351.03 mi (5,392.95 km) |
| South Portland to Arenys de Mar | 3,582.64 mi (5,765.70 km) |
| South Portland to Arenys de Munt | 3,581.17 mi (5,763.33 km) |
