| Havre de Grace to Manassas (Virginia) | 91.86 mi (147.83 km) |
| Havre de Grace to Manassas Park (Virginia) | 89.14 mi (143.46 km) |
| Havre de Grace to Manatí (Puerto Rico) | 1,568.64 mi (2,524.49 km) |
| Havre de Grace to Manchester (Missouri) | 774.10 mi (1,245.79 km) |
| Havre de Grace to Manchester (New Hampshire) | 339.31 mi (546.07 km) |
| Havre de Grace to Manchester (Tennessee) | 614.19 mi (988.45 km) |
| Havre de Grace to Manchester (Virginia) | 161.70 mi (260.23 km) |
| Havre de Grace to Mandan (North Dakota) | 1,338.42 mi (2,153.97 km) |
| Havre de Grace to Mandeville (Louisiana) | 1,011.74 mi (1,628.24 km) |
| Havre de Grace to Mango (Florida) | 873.52 mi (1,405.79 km) |
| Havre de Grace to Manhattan (Kansas) | 1,092.40 mi (1,758.04 km) |
| Havre de Grace to Manhattan (New York) | 141.96 mi (228.46 km) |
| Havre de Grace to Manhattan Beach (California) | 2,352.26 mi (3,785.60 km) |
| Havre de Grace to Manitowoc (Wisconsin) | 672.59 mi (1,082.44 km) |
| Havre de Grace to Mankato (Minnesota) | 970.75 mi (1,562.27 km) |
