| Houston to McKeesport (Pennsylvania) | 1,139.19 mi (1,833.34 km) |
| Houston to McKinleyville (California) | 1,780.37 mi (2,865.23 km) |
| Houston to McKinney (Texas) | 247.72 mi (398.66 km) |
| Houston to McLean (Virginia) | 1,211.90 mi (1,950.37 km) |
| Houston to McMinnville (Oregon) | 1,844.60 mi (2,968.60 km) |
| Houston to McMinnville (Tennessee) | 690.76 mi (1,111.67 km) |
| Houston to McNair (Virginia) | 1,201.66 mi (1,933.89 km) |
| Houston to McPherson (Kansas) | 607.21 mi (977.22 km) |
| Houston to Mead Valley (California) | 1,313.03 mi (2,113.12 km) |
| Houston to Meadow Woods (Florida) | 853.00 mi (1,372.77 km) |
| Houston to Meadowbrook (Virginia) | 1,155.55 mi (1,859.68 km) |
| Houston to Meadville (Pennsylvania) | 1,180.93 mi (1,900.52 km) |
| Houston to Mebane (North Carolina) | 1,029.07 mi (1,656.13 km) |
| Houston to Mechanicsville (Virginia) | 1,166.64 mi (1,877.53 km) |
| Houston to Medford (Massachusetts) | 1,603.25 mi (2,580.18 km) |
