| Portimao to Marsala | 1,148.61 mi (1,848.51 km) |
| Portimao to Marsciano | 1,170.49 mi (1,883.73 km) |
| Portimao to Martano | 1,457.54 mi (2,345.68 km) |
| Portimao to Martellago | 1,215.65 mi (1,956.41 km) |
| Portimao to Martina Franca | 1,407.11 mi (2,264.53 km) |
| Portimao to Martinengo | 1,110.02 mi (1,786.41 km) |
| Portimao to Martinsicuro | 1,248.43 mi (2,009.15 km) |
| Portimao to Mascali | 1,299.41 mi (2,091.19 km) |
| Portimao to Mascalucia | 1,292.50 mi (2,080.07 km) |
| Portimao to Masera di Padova | 1,196.77 mi (1,926.02 km) |
| Portimao to Maserada sul Piave | 1,227.94 mi (1,976.18 km) |
| Portimao to Massa | 1,086.10 mi (1,747.91 km) |
| Portimao to Massa Lombarda | 1,174.26 mi (1,889.79 km) |
| Portimao to Massafra | 1,395.54 mi (2,245.90 km) |
| Portimao to Massalubrense | 1,250.65 mi (2,012.73 km) |
