| Rapid City to Morris (Illinois) | 772.32 mi (1,242.93 km) |
| Rapid City to Morristown (New Jersey) | 1,475.41 mi (2,374.45 km) |
| Rapid City to Morristown (Tennessee) | 1,180.05 mi (1,899.11 km) |
| Rapid City to Morrisville (North Carolina) | 1,404.44 mi (2,260.23 km) |
| Rapid City to Morro Bay (California) | 1,109.61 mi (1,785.75 km) |
| Rapid City to Morton (Illinois) | 740.83 mi (1,192.24 km) |
| Rapid City to Morton Grove (Illinois) | 790.34 mi (1,271.93 km) |
| Rapid City to Moscow (Idaho) | 692.19 mi (1,113.97 km) |
| Rapid City to Moses Lake (Washington) | 802.75 mi (1,291.90 km) |
| Rapid City to Moss Bluff (Louisiana) | 1,097.50 mi (1,766.26 km) |
| Rapid City to Moss Point (Mississippi) | 1,237.85 mi (1,992.13 km) |
| Rapid City to Moultrie (Georgia) | 1,382.62 mi (2,225.11 km) |
| Rapid City to Mounds View (Minnesota) | 497.52 mi (800.68 km) |
| Rapid City to Mount Airy (North Carolina) | 1,295.43 mi (2,084.79 km) |
| Rapid City to Mount Clemens (Michigan) | 1,024.54 mi (1,648.84 km) |
