| Northolt to Manerbio | 642.27 mi (1,033.63 km) |
| Northolt to Manfredonia | 1,028.86 mi (1,655.79 km) |
| Northolt to Maniago | 699.96 mi (1,126.48 km) |
| Northolt to Mantova | 675.14 mi (1,086.53 km) |
| Northolt to Maranello | 708.67 mi (1,140.50 km) |
| Northolt to Marano di Napoli | 1,008.85 mi (1,623.59 km) |
| Northolt to Marano Vicentino | 672.29 mi (1,081.95 km) |
| Northolt to Marcianise | 1,005.45 mi (1,618.11 km) |
| Northolt to Marcon | 710.60 mi (1,143.59 km) |
| Northolt to Mareno di Piave | 699.95 mi (1,126.46 km) |
| Northolt to Margherita di Savoia | 1,050.59 mi (1,690.77 km) |
| Northolt to Mariano Comense | 593.72 mi (955.50 km) |
| Northolt to Marigliano | 1,015.74 mi (1,634.67 km) |
| Northolt to Marino | 913.19 mi (1,469.63 km) |
| Northolt to Marostica | 678.33 mi (1,091.67 km) |
