| Port Neches to Mankato (Minnesota) | 980.78 mi (1,578.41 km) |
| Port Neches to Manor (Texas) | 215.26 mi (346.43 km) |
| Port Neches to Manorville (New York) | 1,402.80 mi (2,257.59 km) |
| Port Neches to Mansfield (Ohio) | 982.86 mi (1,581.76 km) |
| Port Neches to Mansfield (Texas) | 259.30 mi (417.30 km) |
| Port Neches to Manteca (California) | 1,648.22 mi (2,652.55 km) |
| Port Neches to Manville (New Jersey) | 1,308.91 mi (2,106.48 km) |
| Port Neches to Maple Grove (Minnesota) | 1,045.88 mi (1,683.18 km) |
| Port Neches to Maple Heights (Ohio) | 1,049.83 mi (1,689.53 km) |
| Port Neches to Maple Valley (Washington) | 1,915.68 mi (3,083.00 km) |
| Port Neches to Mapleton (Utah) | 1,215.04 mi (1,955.42 km) |
| Port Neches to Maplewood (Minnesota) | 1,038.14 mi (1,670.73 km) |
| Port Neches to Marana (Arizona) | 1,029.95 mi (1,657.55 km) |
| Port Neches to Marco Island (Florida) | 797.37 mi (1,283.25 km) |
| Port Neches to Margate (Florida) | 875.07 mi (1,408.29 km) |
