| South Houston to Marsala | 5,841.90 mi (9,401.63 km) |
| South Houston to Marsciano | 5,642.53 mi (9,080.77 km) |
| South Houston to Martano | 6,002.70 mi (9,660.41 km) |
| South Houston to Martellago | 5,536.48 mi (8,910.10 km) |
| South Houston to Martina Franca | 5,941.31 mi (9,561.61 km) |
| South Houston to Martinengo | 5,437.46 mi (8,750.74 km) |
| South Houston to Martinsicuro | 5,710.53 mi (9,190.21 km) |
| South Houston to Mascali | 5,968.24 mi (9,604.95 km) |
| South Houston to Mascalucia | 5,968.86 mi (9,605.95 km) |
| South Houston to Masera di Padova | 5,533.16 mi (8,904.77 km) |
| South Houston to Maserada sul Piave | 5,535.36 mi (8,908.30 km) |
| South Houston to Massa | 5,508.07 mi (8,864.38 km) |
| South Houston to Massa Lombarda | 5,563.34 mi (8,953.33 km) |
| South Houston to Massafra | 5,936.95 mi (9,554.59 km) |
| South Houston to Massalubrense | 5,817.40 mi (9,362.20 km) |
