| Opera to Marsala | 549.70 mi (884.66 km) |
| Opera to Marsciano | 230.00 mi (370.15 km) |
| Opera to Martano | 582.79 mi (937.90 km) |
| Opera to Martellago | 142.94 mi (230.05 km) |
| Opera to Martina Franca | 521.76 mi (839.68 km) |
| Opera to Martinengo | 29.65 mi (47.71 km) |
| Opera to Martinsicuro | 290.02 mi (466.74 km) |
| Opera to Mascali | 611.00 mi (983.30 km) |
| Opera to Mascalucia | 618.35 mi (995.15 km) |
| Opera to Masera di Padova | 128.75 mi (207.21 km) |
| Opera to Maserada sul Piave | 152.06 mi (244.72 km) |
| Opera to Massa | 103.57 mi (166.67 km) |
| Opera to Massa Lombarda | 142.61 mi (229.51 km) |
| Opera to Massafra | 518.64 mi (834.66 km) |
| Opera to Massalubrense | 419.03 mi (674.37 km) |
