| Porthcawl to Medford (New York) | 3,268.55 mi (5,260.22 km) |
| Porthcawl to Medford (Oregon) | 5,001.42 mi (8,049.01 km) |
| Porthcawl to Medina (Ohio) | 3,617.33 mi (5,821.53 km) |
| Porthcawl to Medulla (Florida) | 4,243.74 mi (6,829.64 km) |
| Porthcawl to Mehlville (Missouri) | 4,073.16 mi (6,555.11 km) |
| Porthcawl to Melbourne (Florida) | 4,180.04 mi (6,727.12 km) |
| Porthcawl to Melissa (Texas) | 4,574.67 mi (7,362.23 km) |
| Porthcawl to Melrose (Massachusetts) | 3,121.32 mi (5,023.27 km) |
| Porthcawl to Melrose Park (Illinois) | 3,819.36 mi (6,146.66 km) |
| Porthcawl to Melville (New York) | 3,287.74 mi (5,291.10 km) |
| Porthcawl to Melvindale (Michigan) | 3,619.10 mi (5,824.39 km) |
| Porthcawl to Memphis (Florida) | 4,288.67 mi (6,901.95 km) |
| Porthcawl to Memphis (Tennessee) | 4,222.59 mi (6,795.60 km) |
| Porthcawl to Menasha (Wisconsin) | 3,737.21 mi (6,014.46 km) |
| Porthcawl to Mendota (California) | 5,242.28 mi (8,436.63 km) |
