| Portchester to Marsala | 1,119.21 mi (1,801.20 km) |
| Portchester to Marsciano | 836.49 mi (1,346.19 km) |
| Portchester to Martano | 1,187.31 mi (1,910.79 km) |
| Portchester to Martellago | 711.08 mi (1,144.38 km) |
| Portchester to Martina Franca | 1,126.88 mi (1,813.53 km) |
| Portchester to Martinengo | 618.66 mi (995.64 km) |
| Portchester to Martinsicuro | 895.48 mi (1,441.13 km) |
| Portchester to Mascali | 1,206.85 mi (1,942.24 km) |
| Portchester to Mascalucia | 1,212.29 mi (1,950.99 km) |
| Portchester to Masera di Padova | 709.19 mi (1,141.33 km) |
| Portchester to Maserada sul Piave | 709.28 mi (1,141.48 km) |
| Portchester to Massa | 704.22 mi (1,133.33 km) |
| Portchester to Massa Lombarda | 745.05 mi (1,199.05 km) |
| Portchester to Massafra | 1,124.52 mi (1,809.74 km) |
| Portchester to Massalubrense | 1,023.70 mi (1,647.48 km) |
