| Longford to Mendota Heights (Minnesota) | 3,656.31 mi (5,884.27 km) |
| Longford to Menifee (California) | 5,079.15 mi (8,174.11 km) |
| Longford to Menlo Park (California) | 5,025.90 mi (8,088.40 km) |
| Longford to Menomonee Falls (Wisconsin) | 3,551.20 mi (5,715.11 km) |
| Longford to Menomonie (Wisconsin) | 3,611.24 mi (5,811.72 km) |
| Longford to Mentor (Ohio) | 3,357.40 mi (5,403.22 km) |
| Longford to Mequon (Wisconsin) | 3,542.01 mi (5,700.31 km) |
| Longford to Merced (California) | 4,982.37 mi (8,018.35 km) |
| Longford to Mercedes (Texas) | 4,784.64 mi (7,700.13 km) |
| Longford to Mercer Island (Washington) | 4,459.15 mi (7,176.31 km) |
| Longford to Mercerville (New Jersey) | 3,159.77 mi (5,085.16 km) |
| Longford to Meriden (Connecticut) | 3,026.10 mi (4,870.04 km) |
| Longford to Meridian (Idaho) | 4,504.76 mi (7,249.72 km) |
| Longford to Meridian (Mississippi) | 4,095.54 mi (6,591.13 km) |
| Longford to Merriam (Kansas) | 3,995.46 mi (6,430.08 km) |
