| Mason City to Marly-le-Roi | 4,277.75 mi (6,884.37 km) |
| Mason City to Marmande | 4,375.89 mi (7,042.31 km) |
| Mason City to Maromme | 4,214.56 mi (6,782.68 km) |
| Mason City to Marquette-les-Lille | 4,242.83 mi (6,828.17 km) |
| Mason City to Marseille | 4,632.95 mi (7,456.02 km) |
| Mason City to Martigues | 4,615.58 mi (7,428.05 km) |
| Mason City to Massy | 4,289.72 mi (6,903.64 km) |
| Mason City to Maubeuge | 4,291.29 mi (6,906.17 km) |
| Mason City to Mauguio | 4,565.51 mi (7,347.47 km) |
| Mason City to Mauleon | 4,244.37 mi (6,830.66 km) |
| Mason City to Maurepas | 4,276.26 mi (6,881.97 km) |
| Mason City to Maxeville | 4,434.36 mi (7,136.42 km) |
| Mason City to Mayenne | 4,196.84 mi (6,754.16 km) |
| Mason City to Mazamet | 4,505.60 mi (7,251.06 km) |
| Mason City to Meaux | 4,303.69 mi (6,926.12 km) |
