| Houston to Melzo | 5,425.83 mi (8,732.03 km) |
| Houston to Mendicino | 5,952.13 mi (9,579.03 km) |
| Houston to Menfi | 5,875.08 mi (9,455.02 km) |
| Houston to Mentana | 5,690.95 mi (9,158.70 km) |
| Houston to Merano | 5,454.67 mi (8,778.44 km) |
| Houston to Merate | 5,419.38 mi (8,721.64 km) |
| Houston to Mercato San Severino | 5,829.60 mi (9,381.84 km) |
| Houston to Mercogliano | 5,823.03 mi (9,371.27 km) |
| Houston to Mesagne | 5,967.00 mi (9,602.97 km) |
| Houston to Messina | 5,967.43 mi (9,603.64 km) |
| Houston to Mestre | 5,542.03 mi (8,919.03 km) |
| Houston to Mestrino | 5,524.34 mi (8,890.57 km) |
| Houston to Milan | 5,417.60 mi (8,718.78 km) |
| Houston to Milazzo | 5,952.48 mi (9,579.59 km) |
| Houston to Minerbio | 5,543.19 mi (8,920.91 km) |
