| Cahokia to Mauldin (South Carolina) | 508.45 mi (818.28 km) |
| Cahokia to Maumee (Ohio) | 402.07 mi (647.06 km) |
| Cahokia to Maumelle (Arkansas) | 284.47 mi (457.81 km) |
| Cahokia to Mayagüez (Puerto Rico) | 1,973.87 mi (3,176.64 km) |
| Cahokia to Mayfield Heights (Ohio) | 504.32 mi (811.63 km) |
| Cahokia to Mays Chapel (Maryland) | 728.17 mi (1,171.88 km) |
| Cahokia to Maywood (California) | 1,585.33 mi (2,551.35 km) |
| Cahokia to Maywood (Illinois) | 260.03 mi (418.48 km) |
| Cahokia to McAlester (Oklahoma) | 398.80 mi (641.80 km) |
| Cahokia to McAllen (Texas) | 972.85 mi (1,565.65 km) |
| Cahokia to McCalla (Alabama) | 403.98 mi (650.14 km) |
| Cahokia to McComb (Mississippi) | 506.09 mi (814.47 km) |
| Cahokia to McDonough (Georgia) | 488.60 mi (786.33 km) |
| Cahokia to McFarland (California) | 1,606.70 mi (2,585.74 km) |
| Cahokia to McHenry (Illinois) | 278.94 mi (448.91 km) |
