| South Portland to Trim | 2,879.44 mi (4,634.01 km) |
| South Portland to Tuam | 2,797.44 mi (4,502.05 km) |
| South Portland to Tullamore | 2,855.49 mi (4,595.46 km) |
| South Portland to Waterford | 2,886.94 mi (4,646.08 km) |
| South Portland to Wexford | 2,913.10 mi (4,688.17 km) |
| South Portland to Wicklow | 2,919.29 mi (4,698.15 km) |
| South Portland to Abano Terme | 3,860.34 mi (6,212.62 km) |
| South Portland to Abbiategrasso | 3,737.41 mi (6,014.78 km) |
| South Portland to Acate | 4,289.86 mi (6,903.86 km) |
| South Portland to Acerra | 4,131.20 mi (6,648.53 km) |
| South Portland to Aci Castello | 4,298.22 mi (6,917.32 km) |
| South Portland to Aci Catena | 4,295.89 mi (6,913.56 km) |
| South Portland to Aci Sant'Antonio | 4,295.14 mi (6,912.37 km) |
| South Portland to Acireale | 4,296.71 mi (6,914.89 km) |
| South Portland to Acquaviva delle Fonti | 4,240.58 mi (6,824.55 km) |
