| Mason City to Lubbeek | 4,298.41 mi (6,917.62 km) |
| Mason City to Lummen | 4,307.09 mi (6,931.59 km) |
| Mason City to Maaseik | 4,323.02 mi (6,957.22 km) |
| Mason City to Machelen | 4,282.85 mi (6,892.58 km) |
| Mason City to Maldegem | 4,235.62 mi (6,816.57 km) |
| Mason City to Malmedy | 4,358.97 mi (7,015.09 km) |
| Mason City to Manage | 4,291.84 mi (6,907.05 km) |
| Mason City to Marche-en-Famenne | 4,342.69 mi (6,988.89 km) |
| Mason City to Mariakerke | 4,249.27 mi (6,838.54 km) |
| Mason City to Mechelen | 4,279.76 mi (6,887.61 km) |
| Mason City to Mechelen-aan-de-Maas | 4,324.33 mi (6,959.33 km) |
| Mason City to Meerhout | 4,296.96 mi (6,915.29 km) |
| Mason City to Meise | 4,278.25 mi (6,885.18 km) |
| Mason City to Melle | 4,256.56 mi (6,850.27 km) |
| Mason City to Melsele | 4,265.05 mi (6,863.93 km) |
