| South Portland to Luzzara | 3,827.12 mi (6,159.16 km) |
| South Portland to Luzzi | 4,273.12 mi (6,876.93 km) |
| South Portland to Macerata | 4,004.06 mi (6,443.91 km) |
| South Portland to Macerata Campania | 4,122.41 mi (6,634.37 km) |
| South Portland to Macomer | 3,909.74 mi (6,292.12 km) |
| South Portland to Maddaloni | 4,128.75 mi (6,644.58 km) |
| South Portland to Magenta | 3,733.71 mi (6,008.82 km) |
| South Portland to Magione | 3,955.81 mi (6,366.27 km) |
| South Portland to Maglie | 4,326.84 mi (6,963.38 km) |
| South Portland to Magnago | 3,726.64 mi (5,997.44 km) |
| South Portland to Malalbergo | 3,871.82 mi (6,231.10 km) |
| South Portland to Malnate | 3,722.81 mi (5,991.28 km) |
| South Portland to Malo | 3,833.92 mi (6,170.10 km) |
| South Portland to Mandello del Lario | 3,737.31 mi (6,014.63 km) |
| South Portland to Manduria | 4,294.01 mi (6,910.55 km) |
