| Port Talbot to McKeesport (Pennsylvania) | 3,563.69 mi (5,735.21 km) |
| Port Talbot to McKinleyville (California) | 5,107.72 mi (8,220.08 km) |
| Port Talbot to McKinney (Texas) | 4,576.03 mi (7,364.42 km) |
| Port Talbot to McLean (Virginia) | 3,517.18 mi (5,660.35 km) |
| Port Talbot to McMinnville (Oregon) | 4,839.56 mi (7,788.51 km) |
| Port Talbot to McMinnville (Tennessee) | 4,018.75 mi (6,467.56 km) |
| Port Talbot to McNair (Virginia) | 3,525.78 mi (5,674.20 km) |
| Port Talbot to McPherson (Kansas) | 4,354.55 mi (7,007.97 km) |
| Port Talbot to Mead Valley (California) | 5,297.16 mi (8,524.95 km) |
| Port Talbot to Meadow Woods (Florida) | 4,190.24 mi (6,743.54 km) |
| Port Talbot to Meadowbrook (Virginia) | 3,596.51 mi (5,788.03 km) |
| Port Talbot to Meadville (Pennsylvania) | 3,518.74 mi (5,662.86 km) |
| Port Talbot to Mebane (North Carolina) | 3,732.69 mi (6,007.18 km) |
| Port Talbot to Mechanicsville (Virginia) | 3,582.76 mi (5,765.90 km) |
| Port Talbot to Medford (Massachusetts) | 3,118.07 mi (5,018.04 km) |
