| South Portland to Arcore | 3,746.68 mi (6,029.70 km) |
| South Portland to Ardea | 4,027.00 mi (6,480.83 km) |
| South Portland to Arenzano | 3,760.52 mi (6,051.98 km) |
| South Portland to Arese | 3,738.83 mi (6,017.06 km) |
| South Portland to Arezzo | 3,930.75 mi (6,325.93 km) |
| South Portland to Argelato | 3,868.89 mi (6,226.37 km) |
| South Portland to Argenta | 3,888.09 mi (6,257.27 km) |
| South Portland to Ariano Irpino | 4,154.79 mi (6,686.49 km) |
| South Portland to Ariccia | 4,028.38 mi (6,483.05 km) |
| South Portland to Arluno | 3,734.81 mi (6,010.60 km) |
| South Portland to Arona | 3,710.50 mi (5,971.48 km) |
| South Portland to Artena | 4,038.65 mi (6,499.57 km) |
| South Portland to Arzachena | 3,907.04 mi (6,287.77 km) |
| South Portland to Arzano | 4,128.12 mi (6,643.56 km) |
| South Portland to Arzignano | 3,835.76 mi (6,173.06 km) |
