| Webster Groves to Marsala | 5,236.36 mi (8,427.10 km) |
| Webster Groves to Marsciano | 5,016.49 mi (8,073.25 km) |
| Webster Groves to Martano | 5,374.33 mi (8,649.15 km) |
| Webster Groves to Martellago | 4,901.25 mi (7,887.80 km) |
| Webster Groves to Martina Franca | 5,313.24 mi (8,550.83 km) |
| Webster Groves to Martinengo | 4,806.14 mi (7,734.73 km) |
| Webster Groves to Martinsicuro | 5,081.56 mi (8,177.98 km) |
| Webster Groves to Mascali | 5,356.09 mi (8,619.79 km) |
| Webster Groves to Mascalucia | 5,357.82 mi (8,622.57 km) |
| Webster Groves to Masera di Padova | 4,899.22 mi (7,884.54 km) |
| Webster Groves to Maserada sul Piave | 4,899.16 mi (7,884.44 km) |
| Webster Groves to Massa | 4,881.92 mi (7,856.68 km) |
| Webster Groves to Massa Lombarda | 4,932.58 mi (7,938.22 km) |
| Webster Groves to Massafra | 5,309.74 mi (8,545.20 km) |
| Webster Groves to Massalubrense | 5,195.95 mi (8,362.08 km) |
