| Middlesbrough to Manerbio | 810.43 mi (1,304.26 km) |
| Middlesbrough to Manfredonia | 1,187.78 mi (1,911.55 km) |
| Middlesbrough to Maniago | 843.16 mi (1,356.94 km) |
| Middlesbrough to Mantova | 840.55 mi (1,352.74 km) |
| Middlesbrough to Maranello | 878.23 mi (1,413.37 km) |
| Middlesbrough to Marano di Napoli | 1,180.36 mi (1,899.61 km) |
| Middlesbrough to Marano Vicentino | 828.75 mi (1,333.74 km) |
| Middlesbrough to Marcianise | 1,175.75 mi (1,892.18 km) |
| Middlesbrough to Marcon | 862.58 mi (1,388.19 km) |
| Middlesbrough to Mareno di Piave | 848.87 mi (1,366.13 km) |
| Middlesbrough to Margherita di Savoia | 1,209.79 mi (1,946.98 km) |
| Middlesbrough to Mariano Comense | 765.79 mi (1,232.42 km) |
| Middlesbrough to Marigliano | 1,185.76 mi (1,908.29 km) |
| Middlesbrough to Marino | 1,088.34 mi (1,751.51 km) |
| Middlesbrough to Marostica | 832.85 mi (1,340.35 km) |
