| Mason City to Montigny-les-Metz | 4,417.91 mi (7,109.94 km) |
| Mason City to Montivilliers | 4,180.16 mi (6,727.31 km) |
| Mason City to Montlouis-sur-Loire | 4,287.55 mi (6,900.15 km) |
| Mason City to Montlucon | 4,397.83 mi (7,077.63 km) |
| Mason City to Montmagny | 4,282.96 mi (6,892.76 km) |
| Mason City to Montmorency | 4,281.43 mi (6,890.30 km) |
| Mason City to Montpellier | 4,560.53 mi (7,339.47 km) |
| Mason City to Montreuil | 4,291.04 mi (6,905.76 km) |
| Mason City to Montrouge | 4,288.22 mi (6,901.22 km) |
| Mason City to Morangis | 4,293.06 mi (6,909.01 km) |
| Mason City to Morieres-les-Avignon | 4,587.09 mi (7,382.21 km) |
| Mason City to Morlaix | 4,062.30 mi (6,537.64 km) |
| Mason City to Morsang-sur-Orge | 4,295.24 mi (6,912.53 km) |
| Mason City to Mouans-Sartoux | 4,681.59 mi (7,534.29 km) |
| Mason City to Mougins | 4,683.35 mi (7,537.12 km) |
