| Willoughby to Mombris | 4,123.90 mi (6,636.78 km) |
| Willoughby to Monchengladbach | 3,981.19 mi (6,407.11 km) |
| Willoughby to Monschau | 3,995.12 mi (6,429.53 km) |
| Willoughby to Montabaur | 4,059.74 mi (6,533.52 km) |
| Willoughby to Moosburg | 4,287.86 mi (6,900.65 km) |
| Willoughby to Morbach | 4,053.10 mi (6,522.83 km) |
| Willoughby to Morfelden-Walldorf | 4,103.76 mi (6,604.36 km) |
| Willoughby to Morlenbach | 4,123.50 mi (6,636.14 km) |
| Willoughby to Morsbach | 4,041.21 mi (6,503.70 km) |
| Willoughby to Mosbach | 4,147.98 mi (6,675.54 km) |
| Willoughby to Mosigkau | 4,176.93 mi (6,722.12 km) |
| Willoughby to Mossingen | 4,177.77 mi (6,723.47 km) |
| Willoughby to Much | 4,027.44 mi (6,481.54 km) |
| Willoughby to Mucheln | 4,179.95 mi (6,726.98 km) |
| Willoughby to Muhlacker | 4,150.07 mi (6,678.90 km) |
