| Porthcawl to Manassas (Virginia) | 3,544.42 mi (5,704.19 km) |
| Porthcawl to Manassas Park (Virginia) | 3,541.71 mi (5,699.83 km) |
| Porthcawl to Manatí (Puerto Rico) | 4,065.24 mi (6,542.37 km) |
| Porthcawl to Manchester (Missouri) | 4,076.81 mi (6,560.98 km) |
| Porthcawl to Manchester (New Hampshire) | 3,115.88 mi (5,014.53 km) |
| Porthcawl to Manchester (Tennessee) | 4,048.34 mi (6,515.17 km) |
| Porthcawl to Manchester (Virginia) | 3,603.01 mi (5,798.48 km) |
| Porthcawl to Mandan (North Dakota) | 4,066.39 mi (6,544.22 km) |
| Porthcawl to Mandeville (Louisiana) | 4,461.58 mi (7,180.22 km) |
| Porthcawl to Mango (Florida) | 4,255.60 mi (6,848.73 km) |
| Porthcawl to Manhattan (Kansas) | 4,282.19 mi (6,891.52 km) |
| Porthcawl to Manhattan (New York) | 3,310.75 mi (5,328.14 km) |
| Porthcawl to Manhattan Beach (California) | 5,339.61 mi (8,593.26 km) |
| Porthcawl to Manitowoc (Wisconsin) | 3,713.88 mi (5,976.92 km) |
| Porthcawl to Mankato (Minnesota) | 3,946.35 mi (6,351.03 km) |
