| Longford to Merrick (New York) | 3,095.56 mi (4,981.82 km) |
| Longford to Merrifield (Virginia) | 3,324.02 mi (5,349.50 km) |
| Longford to Merrillville (Indiana) | 3,598.40 mi (5,791.07 km) |
| Longford to Merritt Island (Florida) | 3,979.95 mi (6,405.11 km) |
| Longford to Mesa (Arizona) | 4,907.94 mi (7,898.56 km) |
| Longford to Mesquite (Nevada) | 4,803.91 mi (7,731.14 km) |
| Longford to Mesquite (Texas) | 4,384.79 mi (7,056.64 km) |
| Longford to Metairie (Louisiana) | 4,276.77 mi (6,882.80 km) |
| Longford to Methuen Town (Massachusetts) | 2,910.21 mi (4,683.53 km) |
| Longford to Metuchen (New Jersey) | 3,132.87 mi (5,041.87 km) |
| Longford to Mexico (Missouri) | 3,881.98 mi (6,247.44 km) |
| Longford to Miami (Florida) | 4,092.02 mi (6,585.47 km) |
| Longford to Miami (Oklahoma) | 4,108.46 mi (6,611.92 km) |
| Longford to Miami Beach (Florida) | 4,087.42 mi (6,578.06 km) |
| Longford to Miami Gardens (Florida) | 4,085.05 mi (6,574.25 km) |
