| Harker Heights to Morristown (New Jersey) | 1,454.16 mi (2,340.24 km) |
| Harker Heights to Morristown (Tennessee) | 897.39 mi (1,444.20 km) |
| Harker Heights to Morrisville (North Carolina) | 1,131.45 mi (1,820.90 km) |
| Harker Heights to Morro Bay (California) | 1,370.57 mi (2,205.72 km) |
| Harker Heights to Morton (Illinois) | 802.76 mi (1,291.91 km) |
| Harker Heights to Morton Grove (Illinois) | 934.15 mi (1,503.37 km) |
| Harker Heights to Moscow (Idaho) | 1,493.94 mi (2,404.26 km) |
| Harker Heights to Moses Lake (Washington) | 1,595.52 mi (2,567.74 km) |
| Harker Heights to Moss Bluff (Louisiana) | 268.87 mi (432.70 km) |
| Harker Heights to Moss Point (Mississippi) | 542.95 mi (873.79 km) |
| Harker Heights to Moultrie (Georgia) | 820.23 mi (1,320.03 km) |
| Harker Heights to Mounds View (Minnesota) | 999.87 mi (1,609.14 km) |
| Harker Heights to Mount Airy (North Carolina) | 1,046.10 mi (1,683.53 km) |
| Harker Heights to Mount Clemens (Michigan) | 1,137.98 mi (1,831.40 km) |
| Harker Heights to Mount Dora (Florida) | 970.17 mi (1,561.34 km) |
