| South Portland to Ascoli Piceno | 4,026.13 mi (6,479.44 km) |
| South Portland to Asola | 3,807.29 mi (6,127.24 km) |
| South Portland to Asolo | 3,850.51 mi (6,196.80 km) |
| South Portland to Assemini | 3,955.46 mi (6,365.70 km) |
| South Portland to Assisi | 3,976.44 mi (6,399.46 km) |
| South Portland to Asti | 3,723.59 mi (5,992.54 km) |
| South Portland to Atessa | 4,092.51 mi (6,586.26 km) |
| South Portland to Atri | 4,053.15 mi (6,522.91 km) |
| South Portland to Atripalda | 4,152.43 mi (6,682.68 km) |
| South Portland to Augusta | 4,313.63 mi (6,942.12 km) |
| South Portland to Aulla | 3,822.25 mi (6,151.32 km) |
| South Portland to Aurisina | 3,929.16 mi (6,323.37 km) |
| South Portland to Avellino | 4,150.83 mi (6,680.12 km) |
| South Portland to Aversa | 4,123.31 mi (6,635.83 km) |
| South Portland to Avezzano | 4,049.89 mi (6,517.66 km) |
