| Belfast to Marsala | 1,446.15 mi (2,327.35 km) |
| Belfast to Marsciano | 1,152.48 mi (1,854.74 km) |
| Belfast to Martano | 1,494.12 mi (2,404.56 km) |
| Belfast to Martellago | 1,012.00 mi (1,628.65 km) |
| Belfast to Martina Franca | 1,434.93 mi (2,309.30 km) |
| Belfast to Martinengo | 930.69 mi (1,497.80 km) |
| Belfast to Martinsicuro | 1,205.89 mi (1,940.69 km) |
| Belfast to Mascali | 1,529.51 mi (2,461.50 km) |
| Belfast to Mascalucia | 1,535.55 mi (2,471.23 km) |
| Belfast to Masera di Padova | 1,013.32 mi (1,630.77 km) |
| Belfast to Maserada sul Piave | 1,007.69 mi (1,621.73 km) |
| Belfast to Massa | 1,023.07 mi (1,646.47 km) |
| Belfast to Massa Lombarda | 1,055.28 mi (1,698.30 km) |
| Belfast to Massafra | 1,433.81 mi (2,307.50 km) |
| Belfast to Massalubrense | 1,341.63 mi (2,159.14 km) |
