| Middlesbrough to Marsala | 1,325.65 mi (2,133.43 km) |
| Middlesbrough to Marsciano | 1,011.78 mi (1,628.31 km) |
| Middlesbrough to Martano | 1,340.68 mi (2,157.62 km) |
| Middlesbrough to Martellago | 858.70 mi (1,381.94 km) |
| Middlesbrough to Martina Franca | 1,283.02 mi (2,064.82 km) |
| Middlesbrough to Martinengo | 788.84 mi (1,269.51 km) |
| Middlesbrough to Martinsicuro | 1,058.27 mi (1,703.12 km) |
| Middlesbrough to Mascali | 1,396.08 mi (2,246.78 km) |
| Middlesbrough to Mascalucia | 1,403.38 mi (2,258.53 km) |
| Middlesbrough to Masera di Padova | 862.53 mi (1,388.11 km) |
| Middlesbrough to Maserada sul Piave | 852.63 mi (1,372.17 km) |
| Middlesbrough to Massa | 888.12 mi (1,429.29 km) |
| Middlesbrough to Massa Lombarda | 909.38 mi (1,463.51 km) |
| Middlesbrough to Massafra | 1,283.07 mi (2,064.90 km) |
| Middlesbrough to Massalubrense | 1,201.61 mi (1,933.80 km) |
