| Holyhead to Manerbio | 859.12 mi (1,382.63 km) |
| Holyhead to Manfredonia | 1,245.78 mi (2,004.90 km) |
| Holyhead to Maniago | 914.90 mi (1,472.39 km) |
| Holyhead to Mantova | 892.06 mi (1,435.63 km) |
| Holyhead to Maranello | 925.38 mi (1,489.26 km) |
| Holyhead to Marano di Napoli | 1,225.02 mi (1,971.47 km) |
| Holyhead to Marano Vicentino | 888.91 mi (1,430.57 km) |
| Holyhead to Marcianise | 1,221.78 mi (1,966.26 km) |
| Holyhead to Marcon | 926.85 mi (1,491.62 km) |
| Holyhead to Mareno di Piave | 915.80 mi (1,473.84 km) |
| Holyhead to Margherita di Savoia | 1,267.52 mi (2,039.88 km) |
| Holyhead to Mariano Comense | 810.38 mi (1,304.19 km) |
| Holyhead to Marigliano | 1,232.09 mi (1,982.85 km) |
| Holyhead to Marino | 1,128.87 mi (1,816.75 km) |
| Holyhead to Marostica | 894.79 mi (1,440.03 km) |
