| Delaware to Monticello (Minnesota) | 643.95 mi (1,036.33 km) |
| Delaware to Montrose (Colorado) | 1,325.31 mi (2,132.88 km) |
| Delaware to Moody (Alabama) | 499.04 mi (803.12 km) |
| Delaware to Moore (Oklahoma) | 856.16 mi (1,377.85 km) |
| Delaware to Moorestown-Lenola (New Jersey) | 428.87 mi (690.19 km) |
| Delaware to Mooresville (North Carolina) | 347.06 mi (558.54 km) |
| Delaware to Moorhead (Minnesota) | 819.88 mi (1,319.46 km) |
| Delaware to Moorpark (California) | 1,997.13 mi (3,214.08 km) |
| Delaware to Moraga (California) | 2,084.65 mi (3,354.92 km) |
| Delaware to Moreno Valley (California) | 1,918.76 mi (3,087.94 km) |
| Delaware to Morgan City (Louisiana) | 862.55 mi (1,388.15 km) |
| Delaware to Morgan Hill (California) | 2,074.36 mi (3,338.36 km) |
| Delaware to Morganton (North Carolina) | 322.75 mi (519.42 km) |
| Delaware to Morgantown (West Virginia) | 171.55 mi (276.08 km) |
| Delaware to Morris (Illinois) | 289.92 mi (466.58 km) |
