| Niagara Falls to Manerbio | 4,173.94 mi (6,717.31 km) |
| Niagara Falls to Manfredonia | 4,559.21 mi (7,337.35 km) |
| Niagara Falls to Maniago | 4,247.56 mi (6,835.78 km) |
| Niagara Falls to Mantova | 4,208.67 mi (6,773.21 km) |
| Niagara Falls to Maranello | 4,235.51 mi (6,816.40 km) |
| Niagara Falls to Marano di Napoli | 4,517.71 mi (7,270.55 km) |
| Niagara Falls to Marano Vicentino | 4,214.04 mi (6,781.84 km) |
| Niagara Falls to Marcianise | 4,517.09 mi (7,269.55 km) |
| Niagara Falls to Marcon | 4,254.46 mi (6,846.88 km) |
| Niagara Falls to Mareno di Piave | 4,245.54 mi (6,832.53 km) |
| Niagara Falls to Margherita di Savoia | 4,579.98 mi (7,370.77 km) |
| Niagara Falls to Mariano Comense | 4,122.80 mi (6,635.00 km) |
| Niagara Falls to Marigliano | 4,527.49 mi (7,286.29 km) |
| Niagara Falls to Marino | 4,418.85 mi (7,111.45 km) |
| Niagara Falls to Marostica | 4,221.24 mi (6,793.43 km) |
