| Mason City to Mancha Real | 4,488.57 mi (7,223.65 km) |
| Mason City to Manilva | 4,473.26 mi (7,199.02 km) |
| Mason City to Manises | 4,555.36 mi (7,331.15 km) |
| Mason City to Manlleu | 4,564.19 mi (7,345.36 km) |
| Mason City to Manresa | 4,557.06 mi (7,333.88 km) |
| Mason City to Manzanares | 4,449.67 mi (7,161.06 km) |
| Mason City to Manzanares el Real | 4,359.08 mi (7,015.26 km) |
| Mason City to Maracena | 4,511.74 mi (7,260.94 km) |
| Mason City to Marbella | 4,484.23 mi (7,216.67 km) |
| Mason City to Marchena | 4,427.18 mi (7,124.85 km) |
| Mason City to Marin | 4,087.11 mi (6,577.58 km) |
| Mason City to Marratxi | 4,683.60 mi (7,537.53 km) |
| Mason City to Martorell | 4,571.78 mi (7,357.57 km) |
| Mason City to Martos | 4,475.83 mi (7,203.15 km) |
| Mason City to Masamagrell | 4,556.84 mi (7,333.53 km) |
