| Herndon to Montijo | 3,699.14 mi (5,953.20 km) |
| Herndon to Montilla | 3,835.41 mi (6,172.49 km) |
| Herndon to Montmelo | 4,045.02 mi (6,509.83 km) |
| Herndon to Montornes del Valles | 4,046.12 mi (6,511.60 km) |
| Herndon to Montoro | 3,834.76 mi (6,171.44 km) |
| Herndon to Monzon | 3,938.67 mi (6,338.68 km) |
| Herndon to Mora | 3,815.32 mi (6,140.16 km) |
| Herndon to Moralzarzal | 3,777.79 mi (6,079.76 km) |
| Herndon to Moron de la Frontera | 3,808.74 mi (6,129.57 km) |
| Herndon to Mostoles | 3,792.38 mi (6,103.24 km) |
| Herndon to Motril | 3,915.98 mi (6,302.17 km) |
| Herndon to Muchamiel | 4,014.44 mi (6,460.62 km) |
| Herndon to Mula | 3,975.36 mi (6,397.73 km) |
| Herndon to Munguia | 3,757.06 mi (6,046.40 km) |
| Herndon to Murcia | 3,994.61 mi (6,428.71 km) |
