| Houston to Monticello (Minnesota) | 1,075.32 mi (1,730.56 km) |
| Houston to Montrose (Colorado) | 930.42 mi (1,497.37 km) |
| Houston to Moody (Alabama) | 585.08 mi (941.59 km) |
| Houston to Moore (Oklahoma) | 401.80 mi (646.63 km) |
| Houston to Moorestown-Lenola (New Jersey) | 1,349.69 mi (2,172.12 km) |
| Houston to Mooresville (North Carolina) | 935.47 mi (1,505.49 km) |
| Houston to Moorhead (Minnesota) | 1,182.45 mi (1,902.96 km) |
| Houston to Moorpark (California) | 1,407.01 mi (2,264.37 km) |
| Houston to Moraga (California) | 1,625.62 mi (2,616.19 km) |
| Houston to Moreno Valley (California) | 1,309.14 mi (2,106.86 km) |
| Houston to Morgan City (Louisiana) | 251.80 mi (405.23 km) |
| Houston to Morgan Hill (California) | 1,590.03 mi (2,558.91 km) |
| Houston to Morganton (North Carolina) | 894.22 mi (1,439.11 km) |
| Houston to Morgantown (West Virginia) | 1,107.46 mi (1,782.28 km) |
| Houston to Morris (Illinois) | 890.30 mi (1,432.80 km) |
