| Key West to Marly-le-Roi | 4,688.22 mi (7,544.96 km) |
| Key West to Marmande | 4,665.44 mi (7,508.31 km) |
| Key West to Maromme | 4,632.89 mi (7,455.92 km) |
| Key West to Marquette-les-Lille | 4,703.56 mi (7,569.66 km) |
| Key West to Marseille | 4,937.16 mi (7,945.59 km) |
| Key West to Martigues | 4,919.49 mi (7,917.15 km) |
| Key West to Massy | 4,698.13 mi (7,560.91 km) |
| Key West to Maubeuge | 4,748.59 mi (7,642.11 km) |
| Key West to Mauguio | 4,865.37 mi (7,830.06 km) |
| Key West to Mauleon | 4,587.03 mi (7,382.12 km) |
| Key West to Maurepas | 4,683.17 mi (7,536.83 km) |
| Key West to Maxeville | 4,870.56 mi (7,838.41 km) |
| Key West to Mayenne | 4,574.89 mi (7,362.58 km) |
| Key West to Mazamet | 4,788.67 mi (7,706.62 km) |
| Key West to Meaux | 4,721.96 mi (7,599.27 km) |
