| Spencer to Mombris | 4,552.30 mi (7,326.21 km) |
| Spencer to Monchengladbach | 4,409.76 mi (7,096.82 km) |
| Spencer to Monschau | 4,430.41 mi (7,130.05 km) |
| Spencer to Montabaur | 4,490.07 mi (7,226.07 km) |
| Spencer to Moosburg | 4,718.91 mi (7,594.35 km) |
| Spencer to Morbach | 4,491.94 mi (7,229.08 km) |
| Spencer to Morfelden-Walldorf | 4,535.10 mi (7,298.54 km) |
| Spencer to Morlenbach | 4,557.87 mi (7,335.19 km) |
| Spencer to Morsbach | 4,467.97 mi (7,190.51 km) |
| Spencer to Mosbach | 4,582.91 mi (7,375.48 km) |
| Spencer to Mosigkau | 4,576.58 mi (7,365.29 km) |
| Spencer to Mossingen | 4,621.45 mi (7,437.50 km) |
| Spencer to Much | 4,454.97 mi (7,169.58 km) |
| Spencer to Mucheln | 4,586.31 mi (7,380.95 km) |
| Spencer to Muhlacker | 4,589.84 mi (7,386.64 km) |
