| Pontypridd to Merrick (New York) | 3,311.35 mi (5,329.10 km) |
| Pontypridd to Merrifield (Virginia) | 3,540.88 mi (5,698.50 km) |
| Pontypridd to Merrillville (Indiana) | 3,827.72 mi (6,160.12 km) |
| Pontypridd to Merritt Island (Florida) | 4,183.60 mi (6,732.85 km) |
| Pontypridd to Mesa (Arizona) | 5,144.44 mi (8,279.18 km) |
| Pontypridd to Mesquite (Nevada) | 5,041.35 mi (8,113.27 km) |
| Pontypridd to Mesquite (Texas) | 4,612.92 mi (7,423.78 km) |
| Pontypridd to Metairie (Louisiana) | 4,495.86 mi (7,235.39 km) |
| Pontypridd to Methuen Town (Massachusetts) | 3,127.34 mi (5,032.97 km) |
| Pontypridd to Metuchen (New Jersey) | 3,349.38 mi (5,390.31 km) |
| Pontypridd to Mexico (Missouri) | 4,112.17 mi (6,617.90 km) |
| Pontypridd to Miami (Florida) | 4,290.53 mi (6,904.95 km) |
| Pontypridd to Miami (Oklahoma) | 4,338.75 mi (6,982.54 km) |
| Pontypridd to Miami Beach (Florida) | 4,285.87 mi (6,897.43 km) |
| Pontypridd to Miami Gardens (Florida) | 4,283.90 mi (6,894.27 km) |
