| Cwmbran to Merrick (New York) | 3,323.62 mi (5,348.85 km) |
| Cwmbran to Merrifield (Virginia) | 3,553.08 mi (5,718.13 km) |
| Cwmbran to Merrillville (Indiana) | 3,838.67 mi (6,177.75 km) |
| Cwmbran to Merritt Island (Florida) | 4,196.59 mi (6,753.76 km) |
| Cwmbran to Mesa (Arizona) | 5,153.74 mi (8,294.14 km) |
| Cwmbran to Mesquite (Nevada) | 5,049.91 mi (8,127.05 km) |
| Cwmbran to Mesquite (Texas) | 4,624.05 mi (7,441.69 km) |
| Cwmbran to Metairie (Louisiana) | 4,507.91 mi (7,254.79 km) |
| Cwmbran to Methuen Town (Massachusetts) | 3,139.50 mi (5,052.54 km) |
| Cwmbran to Metuchen (New Jersey) | 3,361.60 mi (5,409.97 km) |
| Cwmbran to Mexico (Missouri) | 4,123.00 mi (6,635.33 km) |
| Cwmbran to Miami (Florida) | 4,303.75 mi (6,926.21 km) |
| Cwmbran to Miami (Oklahoma) | 4,349.56 mi (6,999.95 km) |
| Cwmbran to Miami Beach (Florida) | 4,299.08 mi (6,918.70 km) |
| Cwmbran to Miami Gardens (Florida) | 4,297.10 mi (6,915.51 km) |
