| Rapid City to Montgomeryville (Pennsylvania) | 1,449.86 mi (2,333.32 km) |
| Rapid City to Monticello (Minnesota) | 470.21 mi (756.72 km) |
| Rapid City to Montrose (Colorado) | 455.76 mi (733.47 km) |
| Rapid City to Moody (Alabama) | 1,151.03 mi (1,852.40 km) |
| Rapid City to Moore (Oklahoma) | 676.41 mi (1,088.58 km) |
| Rapid City to Moorestown-Lenola (New Jersey) | 1,470.31 mi (2,366.23 km) |
| Rapid City to Mooresville (North Carolina) | 1,319.23 mi (2,123.10 km) |
| Rapid City to Moorhead (Minnesota) | 368.23 mi (592.61 km) |
| Rapid City to Moorpark (California) | 1,073.97 mi (1,728.39 km) |
| Rapid City to Moraga (California) | 1,072.84 mi (1,726.57 km) |
| Rapid City to Moreno Valley (California) | 1,024.65 mi (1,649.02 km) |
| Rapid City to Morgan City (Louisiana) | 1,191.83 mi (1,918.06 km) |
| Rapid City to Morgan Hill (California) | 1,075.48 mi (1,730.82 km) |
| Rapid City to Morganton (North Carolina) | 1,272.33 mi (2,047.62 km) |
| Rapid City to Morgantown (West Virginia) | 1,231.73 mi (1,982.28 km) |
