| Willow Grove to Mombris | 3,944.84 mi (6,348.61 km) |
| Willow Grove to Monchengladbach | 3,803.62 mi (6,121.33 km) |
| Willow Grove to Monschau | 3,813.69 mi (6,137.54 km) |
| Willow Grove to Montabaur | 3,880.31 mi (6,244.76 km) |
| Willow Grove to Moosburg | 4,105.63 mi (6,607.37 km) |
| Willow Grove to Morbach | 3,869.07 mi (6,226.67 km) |
| Willow Grove to Morfelden-Walldorf | 3,923.29 mi (6,313.93 km) |
| Willow Grove to Morlenbach | 3,941.18 mi (6,342.71 km) |
| Willow Grove to Morsbach | 3,863.94 mi (6,218.41 km) |
| Willow Grove to Mosbach | 3,965.09 mi (6,381.20 km) |
| Willow Grove to Mosigkau | 4,012.89 mi (6,458.12 km) |
| Willow Grove to Mossingen | 3,989.78 mi (6,420.93 km) |
| Willow Grove to Much | 3,849.91 mi (6,195.83 km) |
| Willow Grove to Mucheln | 4,012.25 mi (6,457.09 km) |
| Willow Grove to Muhlacker | 3,964.51 mi (6,380.26 km) |
