| Herndon to Masanasa | 3,985.92 mi (6,414.72 km) |
| Herndon to Masquefa | 4,026.33 mi (6,479.74 km) |
| Herndon to Matadepera | 4,033.07 mi (6,490.59 km) |
| Herndon to Mazarron | 3,997.80 mi (6,433.83 km) |
| Herndon to Meco | 3,811.99 mi (6,134.81 km) |
| Herndon to Medina del Campo | 3,715.22 mi (5,979.06 km) |
| Herndon to Medina Sidonia | 3,805.32 mi (6,124.07 km) |
| Herndon to Mejorada del Campo | 3,813.63 mi (6,137.44 km) |
| Herndon to Meliana | 3,984.66 mi (6,412.69 km) |
| Herndon to Mengibar | 3,864.39 mi (6,219.14 km) |
| Herndon to Merida | 3,713.37 mi (5,976.09 km) |
| Herndon to Miajadas | 3,719.34 mi (5,985.70 km) |
| Herndon to Mieres | 3,623.32 mi (5,831.16 km) |
| Herndon to Miguelturra | 3,827.84 mi (6,160.31 km) |
| Herndon to Mijas | 3,865.22 mi (6,220.48 km) |
