| Port Neches to Melzo | 5,356.30 mi (8,620.14 km) |
| Port Neches to Mendicino | 5,880.37 mi (9,463.53 km) |
| Port Neches to Menfi | 5,800.95 mi (9,335.73 km) |
| Port Neches to Mentana | 5,619.85 mi (9,044.27 km) |
| Port Neches to Merano | 5,386.71 mi (8,669.07 km) |
| Port Neches to Merate | 5,350.02 mi (8,610.03 km) |
| Port Neches to Mercato San Severino | 5,758.38 mi (9,267.21 km) |
| Port Neches to Mercogliano | 5,751.90 mi (9,256.79 km) |
| Port Neches to Mesagne | 5,896.83 mi (9,490.03 km) |
| Port Neches to Messina | 5,894.66 mi (9,486.54 km) |
| Port Neches to Mestre | 5,473.49 mi (8,808.72 km) |
| Port Neches to Mestrino | 5,455.60 mi (8,779.93 km) |
| Port Neches to Milan | 5,347.97 mi (8,606.73 km) |
| Port Neches to Milazzo | 5,879.61 mi (9,462.32 km) |
| Port Neches to Minerbio | 5,473.67 mi (8,809.03 km) |
