| Delaware to Manassas (Virginia) | 316.26 mi (508.98 km) |
| Delaware to Manassas Park (Virginia) | 317.74 mi (511.36 km) |
| Delaware to Manatí (Puerto Rico) | 1,803.73 mi (2,902.82 km) |
| Delaware to Manchester (Missouri) | 413.54 mi (665.53 km) |
| Delaware to Manchester (New Hampshire) | 628.23 mi (1,011.04 km) |
| Delaware to Manchester (Tennessee) | 371.20 mi (597.39 km) |
| Delaware to Manchester (Virginia) | 354.69 mi (570.82 km) |
| Delaware to Mandan (North Dakota) | 996.83 mi (1,604.25 km) |
| Delaware to Mandeville (Louisiana) | 790.07 mi (1,271.49 km) |
| Delaware to Mango (Florida) | 850.53 mi (1,368.80 km) |
| Delaware to Manhattan (Kansas) | 722.18 mi (1,162.23 km) |
| Delaware to Manhattan (New York) | 479.30 mi (771.35 km) |
| Delaware to Manhattan Beach (California) | 1,982.51 mi (3,190.55 km) |
| Delaware to Manitowoc (Wisconsin) | 353.53 mi (568.95 km) |
| Delaware to Mankato (Minnesota) | 618.41 mi (995.23 km) |
