| South Portland to Argentona | 3,576.78 mi (5,756.26 km) |
| South Portland to Arico el Nuevo | 3,133.18 mi (5,042.37 km) |
| South Portland to Armilla | 3,442.46 mi (5,540.11 km) |
| South Portland to Arnedo | 3,350.04 mi (5,391.36 km) |
| South Portland to Arona | 3,127.61 mi (5,033.40 km) |
| South Portland to Arrecife | 3,250.33 mi (5,230.90 km) |
| South Portland to Arrigorriaga | 3,284.44 mi (5,285.79 km) |
| South Portland to Arroyomolinos | 3,326.82 mi (5,353.99 km) |
| South Portland to Arteijo | 3,022.96 mi (4,864.98 km) |
| South Portland to Arucas | 3,184.75 mi (5,125.36 km) |
| South Portland to Aspe | 3,537.12 mi (5,692.44 km) |
| South Portland to Astorga | 3,159.92 mi (5,085.40 km) |
| South Portland to Atarfe | 3,436.48 mi (5,530.47 km) |
| South Portland to Avila | 3,278.12 mi (5,275.62 km) |
| South Portland to Aviles | 3,136.23 mi (5,047.27 km) |
